MCQ Questions for CBSE Class 7 Science All Chapters with Answers

CBSE Class 7 Science MCQs with Answers help students understand important science concepts in an easy and interesting way. Science is a subject that develops curiosity and logical thinking. Practising CBSE MCQs regularly helps students revise every chapter, improve accuracy, and prepare well for school exams.

At Shiksha Nation, we provide chapter-wise CBSE Class 7 Science MCQs with Answers based on the latest CBSE Class 7 Science syllabus 2026-27. Every question is prepared according to the newest NCERT Solutions for class 7 and CBSE guidelines. These MCQs come with answers so students can check their performance instantly and improve their understanding of every topic.

Whether you are preparing for class tests, half-yearly exams, annual cbse board school exams, or simply revising your lessons, these Class 7 Science MCQs will help you build confidence and score better marks.

Chapter-wise CBSE Class 7 Science MCQs with Answers (Latest Syllabus 2026-27)

Below is the complete list of CBSE Class 7 Science MCQs with Answers PDF prepared according to the latest NCERT Solutions and CBSE syllabus. Students can practise each chapter separately for better revision.

Important CBSE Class 7 MCQ Science Questions with Answers

Chapter 1: The Ever-Evolving World of Science MCQs

1. Science mainly helps us to:

A. Memorise facts only

B. Understand and explain the world around us

C. Learn only mathematics

D. Draw pictures

Answer: B

Solution: Science helps us observe, question, experiment, and understand natural events around us.

2. Which of the following is an important step in the scientific method?

A. Guessing randomly

B. Observation

C. Ignoring results

D. Copying answers

Answer: B

Solution: Every scientific investigation begins with careful observation.

3. Which quality is most important for a scientist?

A. Curiosity

B. Laziness

C. Carelessness

D. Fear

Answer: A

Solution: Scientists ask questions and investigate with curiosity.

4. Which tool is commonly used to observe tiny living organisms?

A. Telescope

B. Microscope

C. Compass

D. Thermometer

Answer: B

Solution: A microscope magnifies very small objects that cannot be seen with the naked eye.

5. Which of the following is an example of scientific observation?

A. Guessing tomorrow's weather

B. Measuring plant growth every week

C. Watching TV

D. Reading a novel

Answer: B

Solution: Measuring and recording observations is an important part of science.

Chapter 2: Exploring Substances: Acidic, Basic and Neutral

1. Which substance turns blue litmus paper red?

A. Base

B. Acid

C. Neutral solution

D. Salt

Answer: B

Solution: Acids change blue litmus paper to red.

2. Soap solution is generally:

A. Acidic

B. Basic

C. Neutral

D. Salty

Answer: B

Solution: Soap contains alkaline substances.

3. Which of these is acidic?

A. Lemon juice

B. Baking soda

C. Toothpaste

D. Soap

Answer: A

Solution: Lemon juice contains citric acid.

4. Which indicator is commonly used in science laboratories?

A. Litmus paper

B. Chalk

C. Cotton

D. Plastic

Answer: A

Solution: Litmus paper helps identify acids and bases.

5. Distilled water is:

A. Acidic

B. Basic

C. Neutral

D. Salty

Answer: C

Solution: Pure water has a neutral pH.

Chapter 3: Electricity: Circuits and Their Components

1. A complete path for electric current is called:

A. Magnet

B. Circuit

C. Battery

D. Cell

Answer: B

Solution: Electric current flows only through a complete circuit.

2. Which material is a good conductor?

A. Plastic

B. Wood

C. Copper

D. Rubber

Answer: C

Solution: Copper allows electricity to pass easily.

3. Which device controls the flow of electricity?

A. Bulb

B. Switch

C. Cell

D. Wire

Answer: B

Solution: A switch opens or closes the circuit.

4. In an open circuit:

A. Current flows

B. Current does not flow

C. Bulb glows brightly

D. Battery increases

Answer: B

Solution: A broken circuit stops the flow of current.

5. Which component provides electrical energy?

A. Wire

B. Cell

C. Switch

D. Bulb

Answer: B

Solution: A cell supplies electrical energy.

Chapter 4: The World of Metals and Non-metals

1. Copper is a:

A. Non-metal

B. Metal

C. Gas

D. Liquid

Answer: B

Solution: Copper is a good conductor of heat and electricity.

2. Which of the following is a non-metal?

A. Iron

B. Aluminium

C. Sulphur

D. Copper

Answer: C

Solution: Sulphur is a non-metal.

3. Metals are generally:

A. Poor conductors

B. Good conductors

C. Transparent

D. Soft liquids

Answer: B

Solution: Most metals conduct heat and electricity well.

4. Which metal is used in electric wires?

A. Sulphur

B. Copper

C. Carbon

D. Oxygen

Answer: B

Solution: Copper has excellent electrical conductivity.

5. Which property is common in metals?

A. Brittle

B. Dull

C. Lustrous

D. Poor conductor

Answer: C

Solution: Metals have a shiny surface called lustre.

Chapter 5: Changes Around Us: Physical and Chemical

1. Melting of ice is a:

A. Chemical change

B. Physical change

C. Permanent change

D. Irreversible change

Answer: B

Solution: No new substance is formed.

2. Rusting of iron is:

A. Physical change

B. Chemical change

C. Temporary change

D. Reversible change

Answer: B

Solution: Rust is a new substance formed.

3. Burning paper is:

A. Physical change

B. Chemical change

C. Reversible

D. Melting

Answer: B

4. Which change can be reversed?

A. Melting wax

B. Burning wood

C. Rusting iron

D. Cooking food

Answer: A

5. Formation of a new substance indicates:

A. Physical change

B. Chemical change

C. Temporary change

D. None

Answer: B

Chapter 6: Adolescence: A Stage of Growth and Change

1. Adolescence is the period between:

A. Childhood and adulthood

B. Birth and infancy

C. Old age

D. Middle age

Answer: A

2. Hormones are produced by:

A. Bones

B. Glands

C. Muscles

D. Skin

Answer: B

3. Which hormone is responsible for growth?

A. Insulin

B. Growth hormone

C. Adrenaline

D. Thyroxine

Answer: B

4. Balanced diet is important during adolescence because:

A. Growth is rapid

B. Students play less

C. They sleep more

D. None

Answer: A

5. Good hygiene helps prevent:

A. Diseases

B. Growth

C. Exercise

D. Study

Answer: A

Chapter 7: Heat Transfer in Nature

Heat flows from:

Answer: Hot object to cold object.

Best conductor of heat:

Answer: Copper.

Heat transfer without a medium is:

Answer: Radiation.

Air is heated mainly by:

Answer: Convection.

Woollen clothes keep us warm because:

Answer: They trap air.

Chapter 8: Measurement of Time and Motion

SI unit of time:

Answer: Second.

Speed =

Answer: Distance ÷ Time.

Instrument used to measure time:

Answer: Stopwatch.

Odometer measures:

Answer: Distance travelled.

Speedometer measures:

Answer: Speed.

Chapter 9: Life Processes in Animals

The human heart pumps:

Answer: Blood.

Digestion starts in the:

Answer: Mouth.

Lungs help in:

Answer: Breathing.

Blood carries:

Answer: Oxygen and nutrients.

Brain controls:

Answer: Body activities.

Chapter 10: Life Processes in Plants

Plants prepare food by:

Answer: Photosynthesis.

Green pigment is:

Answer: Chlorophyll.

Roots absorb:

Answer: Water and minerals.

Food is prepared mainly in:

Answer: Leaves.

Stomata help in:

Answer: Gas exchange.

Chapter 11: Light: Shadows and Reflections

Reflection occurs from:

Answer: Mirror.

A shadow forms when:

Answer: Light is blocked.

Transparent objects allow:

Answer: Most light to pass.

Opaque objects:

Answer: Do not allow light to pass.

Light travels in:

Answer: Straight lines.

Chapter 12: Earth, Moon and the Sun

Earth revolves around:

Answer: The Sun.

The Moon is Earth's:

Answer: Natural satellite.

Earth takes about ____ days to complete one revolution.

Answer: 365 days.

Day and night occur due to:

Answer: Earth's rotation.

The Sun is a:

Answer: Star.

CBSE Class 7 Science MCQs with Answers (Old Syllabus)

Students who are studying from the previous CBSE syllabus can also practise the chapter-wise Class 7 Science MCQs with Answers given below. These questions are useful for revision and help students strengthen their basics.

Why Practise CBSE Class 7 Science MCQs with Answers?

Regular practice of CBSE Class 7 Science MCQs with Answers makes learning easier and improves exam performance. Here are some important benefits:

• Easy Revision: MCQs help students quickly revise every chapter before exams.
• Better Understanding: Students learn important concepts in Physics, Chemistry, Biology, and Environmental Science through simple questions.
• Improves Accuracy: Solving MCQs regularly reduces mistakes and increases confidence during exams.
• Instant Self-Assessment: Since answers are provided, students can check their performance immediately and understand where they need more practice.
• Exam-Oriented Practice: The questions follow the latest CBSE pattern, helping students become familiar with objective-type questions.
• Builds Strong Basics: Regular practice strengthens fundamental concepts, making higher classes easier to understand.
• Saves Time: MCQs cover many concepts in less time, making revision faster and more effective.
• Improves Critical Thinking: Students learn to analyse options carefully and choose the correct answer.

Why Choose Shiksha Nation for Class 7 Science MCQs?

Shiksha Nation provides high-quality CBSE Class 7 Science MCQs with Answers designed by subject experts according to the latest CBSE and NCERT syllabus. Every chapter includes carefully selected questions that help students prepare for school exams and strengthen their concepts.

With Shiksha Nation, students get:

• Chapter-wise CBSE Class 7 Science MCQs.
• Questions based on the latest CBSE syllabus 2026-27.
• Detailed answer keys for self-practice.
• Easy-to-understand and student-friendly content.
• Regularly updated study material for effective exam preparation.

Start practising CBSE Class 7 Science MCQs with Answers on Shiksha Nation today and make your Science preparation simple, smart, and effective.