Class 8 Science Competency Based Questions

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Exploring the Investigative World of Science. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A fair test changes one variable. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Record observations honestly. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Repeat improves reliability. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Science is investigative. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring the Investigative World of Science · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from The Invisible Living World: Beyond Our Naked Eye. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Microbes are seen with a microscope. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Some microbes are useful; some cause disease. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Hygiene limits harmful microbes. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Yeast and curd are familiar examples. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: The Invisible Living World: Beyond Our Naked Eye · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Health: The Ultimate Treasure. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Health is physical, mental and social well-being. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Balanced diet, sleep, exercise. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Vaccination as in the lesson. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Clean water and sanitation. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Health: The Ultimate Treasure · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Electricity: Magnetic and Heating Effects. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A current-carrying wire has a magnetic field. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A fuse melts to break an unsafe circuit. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Heating effect of current. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Electromagnet. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Electricity: Magnetic and Heating Effects · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Exploring Forces. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A force can change speed, direction or shape. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Friction opposes relative motion. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Gravity is a non-contact force. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Muscular force is a contact force. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Exploring Forces · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Pressure, Winds, Storms, and Cyclones. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Pressure = force / area. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Air moves from high to low pressure — wind. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Cyclones are dangerous weather systems. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Listen to official warnings. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Pressure, Winds, Storms, and Cyclones · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Particulate Nature of Matter. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Matter is made of particles. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Particles have space between them. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — They move faster when hotter. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Diffusion. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Particulate Nature of Matter · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

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.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Nature of Matter: Elements, Compounds, and Mixtures. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — An element is a pure substance of one kind of atom as taught at this level. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A compound has elements chemically combined. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — A mixture can be separated by physical methods. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).

Step 1: State the fact — Air is a mixture. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.

Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.

Class: Class 8 · Subject: Science · Chapter: Nature of Matter: Elements, Compounds, and Mixtures · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).