Class 7 Science Changes Around Us: Physical and Chemical Sample Paper Style Practice
Sample Paper Style Practice for Class 7 Science Changes Around Us: Physical and Chemical. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Melting ice is physical
C. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
D. A physical change does not make a new substance
Answer
D. A physical change does not make a new substance
Explanation
A physical change does not make a new substance. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. A chemical change makes a new substance
D. Burning is chemical
Answer
C. A chemical change makes a new substance
Explanation
A chemical change makes a new substance. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Heat, light or gas can signal a chemical change
D. Melting ice is physical
Answer
D. Melting ice is physical
Explanation
Melting ice is physical. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Burning is chemical
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Burning is chemical
Explanation
Burning is chemical. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Heat, light or gas can signal a chemical change
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. Heat, light or gas can signal a chemical change
Explanation
Heat, light or gas can signal a chemical change. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q6MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
B. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
C. Burning is chemical
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer
A. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
Explanation
Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q7MCQ1 markEasy
Choose the correct statement related to Textbook first in the chapter Changes Around Us: Physical and Chemical.
A. The textbook says the opposite of this statement
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q8MCQ1 markEasy
Choose the correct statement related to Keywords in the chapter Changes Around Us: Physical and Chemical.
A. This happens only in a laboratory and never in daily life
B. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Explanation
Every chapter ends with keywords or a summary that is useful for one-mark answers. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Changes Around Us: Physical and Chemical.
A. A physical change does not make a new substance
B. This idea is not part of the NCERT chapter
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
Answer
C. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q10MCQ1 markModerate
Choose the correct statement related to Diagrams in the chapter Changes Around Us: Physical and Chemical.
A. A chemical change makes a new substance
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. The textbook says the opposite of this statement
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Explanation
If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q11MCQ1 markEasy
Choose the correct statement related to Revision in the chapter Changes Around Us: Physical and Chemical.
A. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
B. Melting ice is physical
C. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
D. This happens only in a laboratory and never in daily life
Answer
C. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
Explanation
Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q12MCQ1 markEasy
Choose the correct statement related to Accuracy in the chapter Changes Around Us: Physical and Chemical.
A. A physical change does not make a new substance
B. Burning is chemical
C. This idea is not part of the NCERT chapter
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Explanation
Use the terms used in the NCERT book; do not replace them with unofficial names. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Changes Around Us: Physical and Chemical.
A. Heat, light or gas can signal a chemical change
B. The textbook says the opposite of this statement
C. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
D. A chemical change makes a new substance
Answer
C. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q14MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Burning is chemical
C. This happens only in a laboratory and never in daily life
D. A physical change does not make a new substance
Answer
D. A physical change does not make a new substance
Explanation
A physical change does not make a new substance. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q15MCQ1 markModerate
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Heat, light or gas can signal a chemical change
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. A chemical change makes a new substance
D. A physical change does not make a new substance
Answer
C. A chemical change makes a new substance
Explanation
A chemical change makes a new substance. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q16MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. A chemical change makes a new substance
D. Melting ice is physical
Answer
D. Melting ice is physical
Explanation
Melting ice is physical. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Burning is chemical
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Melting ice is physical
Answer
A. Burning is chemical
Explanation
Burning is chemical. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q18MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. Burning is chemical
B. Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Heat, light or gas can signal a chemical change
Answer
D. Heat, light or gas can signal a chemical change
Explanation
Heat, light or gas can signal a chemical change. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q19MCQ1 markEasy
Choose the correct statement related to Changes Around Us: Physical and Chemical in the chapter Changes Around Us: Physical and Chemical.
A. A chemical change makes a new substance
B. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
C. This topic is only for college
D. Heat, light or gas can signal a chemical change
Answer
B. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
Explanation
Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q20MCQ1 markModerate
Choose the correct statement related to Textbook first in the chapter Changes Around Us: Physical and Chemical.
A. Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q413 Mark3 marksModerateRevision pick
Explain Changes Around Us: Physical and Chemical in about three points, with one example.
Answer
A chemical change makes a new substance. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q423 Mark3 marksModerate
Explain Changes Around Us: Physical and Chemical in about three points, with one example.
Answer
Melting ice is physical. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q433 Mark3 marksModerate
Explain Changes Around Us: Physical and Chemical in about three points, with one example.
Answer
Burning is chemical. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q443 Mark3 marksDifficult
Explain Changes Around Us: Physical and Chemical in about three points, with one example.
Answer
Heat, light or gas can signal a chemical change. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q453 Mark3 marksModerateRevision pick
Explain Changes Around Us: Physical and Chemical in about three points, with one example.
Answer
Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q463 Mark3 marksModerate
Explain Textbook first in about three points, with one example.
Answer
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q473 Mark3 marksModerate
Explain Keywords in about three points, with one example.
Answer
Every chapter ends with keywords or a summary that is useful for one-mark answers. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q483 Mark3 marksDifficult
Explain Examples in about three points, with one example.
Answer
CBSE often tests a concept by asking a daily-life example from the same chapter. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q555 Mark5 marksModerate
Write a long answer on Changes Around Us: Physical and Chemical. Include definition, explanation and one application.
Answer
Changes Around Us: Physical and Chemical — Melting ice is physical. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q565 Mark5 marksModerate
Write a long answer on Changes Around Us: Physical and Chemical. Include definition, explanation and one application.
Answer
Changes Around Us: Physical and Chemical — Burning is chemical. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q575 Mark5 marksDifficultRevision pick
Write a long answer on Changes Around Us: Physical and Chemical. Include definition, explanation and one application.
Answer
Changes Around Us: Physical and Chemical — Heat, light or gas can signal a chemical change. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q585 Mark5 marksModerate
Write a long answer on Changes Around Us: Physical and Chemical. Include definition, explanation and one application.
Answer
Changes Around Us: Physical and Chemical — Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q595 Mark5 marksModerate
Write a long answer on Textbook first. Include definition, explanation and one application.
Answer
Textbook first — Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q605 Mark5 marksDifficult
Write a long answer on Keywords. Include definition, explanation and one application.
Answer
Keywords — Every chapter ends with keywords or a summary that is useful for one-mark answers. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q61Assertion and Reason1 markModerate
Assertion (A): CBSE often tests a concept by asking a daily-life example from the same chapter.
Reason (R): Examples is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q62Assertion and Reason1 markModerate
Assertion (A): If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.
Reason (R): Diagrams is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q63Assertion and Reason1 markModerate
Assertion (A): Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start.
Reason (R): Revision is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q64Assertion and Reason1 markDifficult
Assertion (A): Use the terms used in the NCERT book; do not replace them with unofficial names.
Reason (R): Accuracy is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q65Assertion and Reason1 markModerate
Assertion (A): Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical.
Reason (R): Practice is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q66Assertion and Reason1 markModerate
Assertion (A): A physical change does not make a new substance.
Reason (R): Changes Around Us: Physical and Chemical is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q67Assertion and Reason1 markModerate
Assertion (A): A chemical change makes a new substance.
Reason (R): Changes Around Us: Physical and Chemical is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q68Assertion and Reason1 markDifficult
Assertion (A): Melting ice is physical.
Reason (R): Changes Around Us: Physical and Chemical is a key idea in the chapter Changes Around Us: Physical and Chemical.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q69Case Based4 marksModerateRevision pick
A student is revising Changes Around Us: Physical and Chemical and notes: “Burning is chemical.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Changes Around Us: Physical and Chemical.
(ii) Burning is chemical.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q70Case Based4 marksModerate
A student is revising Changes Around Us: Physical and Chemical and notes: “Heat, light or gas can signal a chemical change.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Changes Around Us: Physical and Chemical.
(ii) Heat, light or gas can signal a chemical change.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q71Case Based4 marksModerate
A student is revising Changes Around Us: Physical and Chemical and notes: “Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Changes Around Us: Physical and Chemical.
(ii) Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q72Case Based4 marksDifficult
A student is revising Changes Around Us: Physical and Chemical and notes: “Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Textbook first.
(ii) Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q73Case Based4 marksModerateRevision pick
A student is revising Changes Around Us: Physical and Chemical and notes: “Every chapter ends with keywords or a summary that is useful for one-mark answers.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Keywords.
(ii) Every chapter ends with keywords or a summary that is useful for one-mark answers.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q74Case Based4 marksModerate
A student is revising Changes Around Us: Physical and Chemical and notes: “CBSE often tests a concept by asking a daily-life example from the same chapter.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Examples.
(ii) CBSE often tests a concept by asking a daily-life example from the same chapter.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q75Case Based4 marksModerate
A student is revising Changes Around Us: Physical and Chemical and notes: “If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Diagrams.
(ii) If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q76Case Based4 marksDifficult
A student is revising Changes Around Us: Physical and Chemical and notes: “Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Revision.
(ii) Write three points from Changes Around Us: Physical and Chemical in your own words; that is enough for a short-answer start.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q77Competency Based3 marksModerateRevision pick
Competency practice: A classmate can recall the heading Accuracy but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Use the terms used in the NCERT book; do not replace them with unofficial names. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q78Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Practice but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Changes Around Us: Physical and Chemical. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q79Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — A physical change does not make a new substance. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q80Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — A chemical change makes a new substance. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q81Competency Based3 marksDifficultRevision pick
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Melting ice is physical. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q82Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Burning is chemical. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q83Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Heat, light or gas can signal a chemical change. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q84Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Changes Around Us: Physical and Chemical but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Changes Around Us: Physical and Chemical is an NCERT chapter taught in CBSE Class 7 Science. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 7 · Subject: Science · Chapter: Changes Around Us: Physical and Chemical · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
How should I use the 100 questions?
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-7/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Sample Paper Style Practice” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
