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Important Questions for CBSE Class 7 Science with Answers
By Maitree Choube
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Updated on 11 Jul 2025, 14:58 IST
Important questions for Class 7 Science are created for students to get extra practice for their exam preparation. These 7th grade science Questions are created as per the latest CBSE Science syllabus for the academic year 2025-26.
CBSE Board Class 7 Science exam covers topics from Physics, Chemistry, and Biology—it’s all about Environmental Science. The important questions designed are related to these topics. Along with theoretical knowledge, students will also be able to learn how to make proper labelling of diagrams and know how to frame the right answers in their exam.
To help you out, Infinity Learn has provided complete chapter-wise important questions for Class 7 students. Also, students will get to know about practical experiment questions as well, which will help them in practical exam viva questions too.
Important Questions for CBSE Class 7 Science with Answers
Important topics included in important questions for CBSE Class 7 Science are: human body systems, plant processes, force and motion, and environmental studies. Topics like human body, plant biology (photosynthesis), physical and chemical changes, force and motion, and the environment are well covered. Solving these questions daily will help students in understanding the concepts easily and will enable them to score good marks in Science exams.
Below, we have provided a table listing important questions from each chapter, helping students focus on important areas and enhance their conceptual knowledge.
| Category | Chapters |
| Biology | Chapter 1 – Nutrition in Plants Chapter 2 – Nutrition in Animals Chapter 6 – Respiration in Organisms Chapter 7 – Transportation in Animals and Plants Chapter 8 – Reproduction in Plants |
| Physics | Chapter 3 – Heat Chapter 9 – Motion and Time Chapter 10 – Electric Current and Its Effects Chapter 11 – Light |
| Chemistry | Chapter 4 – Acids, Bases and Salts Chapter 5 – Physical Changes and Chemical Changes |
| Environmental Science (EVS) / General Science | Chapter 12 – Forests: Our Lifeline Chapter 13 – Wastewater Story |
Also Check: NCERT Solutions for Class 7 Science
20 Most Important Questions for CBSE Class 7 Science with Answers
Q1. Which part of the digestive system is mainly responsible for absorption of nutrients?
A. Stomach
B. Small Intestine
C. Large Intestine
D. Liver
Answer: B. Small Intestine
Q2. Which of the following is an example of physical change?
A. Rusting of iron
B. Burning of paper
C. Melting of ice
D. Cooking of rice
Answer: C. Melting of ice
Q3. What is another name for the backbone in the human body?
A. Ribcage
B. Spinal Cord
C. Vertebral Column
D. Skull
Answer: C. Vertebral Column
Q4. Which of the following forces can work even without making physical contact?
A. Friction
B. Muscular force
C. Magnetic force
D. Push
Answer: C. Magnetic force
Q5. What important role does chlorophyll play during the process of photosynthesis?
A. Absorbs carbon dioxide
B. Absorbs water
C. Absorbs sunlight
D. Produces oxygen
Answer: C. Absorbs sunlight
Q6. What do we call the time it takes for a swing to complete one full back-and-forth movement?
A. Frequency
B. Period
C. Amplitude
D. Speed
Answer: B. Period
Q7. What happens to blood pressure when the heart pumps faster?
A. Decreases
B. Increases
C. No change
D. Stops
Answer: B. Increases
Q8. Which instrument is used to measure temperature in a laboratory experiment?
A. Barometer
B. Thermometer
C. Manometer
D. Altimeter
Answer: B. Thermometer
Q9. Which gas is essential for burning?
A. Carbon dioxide
B. Nitrogen
C. Oxygen
D. Hydrogen
Answer: C. Oxygen
Q10. Which part of the plant shows negative geotropism?
A. Root
B. Stem
C. Leaf
D. Flower
Answer: B. Stem
Q11. The speed of an object is calculated by:
A. Mass ÷ Time
B. Distance × Time
C. Distance ÷ Time
D. Time ÷ Distance
Answer: C. Distance ÷ Time
Q12. From the options below, which one can break down naturally in the environment?
A. Plastic bottle
B. Polythene
C. Paper
D. Glass
Answer: C. Paper
Q13. Which type of soil is most suitable and rich for growing healthy crops?
A. Sandy soil
B. Clayey soil
C. Loamy soil
D. Rocky soil
Answer: C. Loamy soil
Q14. Which planet has the fastest rotation in the solar system?
A. Earth
B. Mars
C. Jupiter
D. Venus
Answer: C. Jupiter
Q15. Which of the following is not a feature commonly found in acids?
A) Sour taste
B) Turns blue litmus red
C) Produces hydrogen ions in water
D) Feels slippery
Answer: D) Feels slippery
Bases feel slippery, not acids.
Q16. What is the primary reason for the seasons on Earth?
A) Distance from the Sun
B) Tilt of the Earth's axis
C) Shape of the Earth
D) Rotation of the Moon
Answer: B) Tilt of the Earth's axis
Q17. What do we call the process when a liquid slowly turns into vapor without reaching its boiling point?
A) Condensation
B) Evaporation
C) Sublimation
D) Freezing
Answer: B) Evaporation
How Class 7 Science Important Questions Boost Exam Preparation
With regular Practice of CBSE Class 7 Science Important Questions students will build strong conceptual understanding of the chapter
- Important questions highlight the most frequently asked and high-weightage topics, that help students to concentrate on what matters most for the exam.
- Practicing these CBSE Class 7 Science important questions ensures students grasp fundamental science concepts, which is essential for scoring well in exam.
- Solving important questions regularly will make students efficient in writing answers within the exam time limit.
- These questions are created by Infinity Learn subject in the same format of actual exam questions, making students comfortable with the types of questions they will face.
- These Important Questions act as handy resource for last-minute revision.
- Exposure to different types of questions improves analytical and critical thinking abilities.
Important Questions for CBSE Class 7 Science FAQs
Which chapter is considered most important in Class 7 Science?
Nutrition in Plants, Nutrition in Animals, and Heat are often considered the most important chapters. They help to understand basic science ideas.
Why is science important in Class 7?
Science teaches students how things work, helps you think better, and prepares you for higher classes.
What are some important questions in CBSE Class 7 Science?
- How do plants make their food?
- What is digestion in humans?
- What is the difference between conduction and convection?
- How do you test if something is acidic or basic?
- Why do we need to breathe?
How to download important questions for CBSE Class 7 Science?
Visit trusted sites like Infinity Learn that provides all the required study material for class 7 science in one place.
How do Class 7 Science important questions help in scoring better marks?
Solving Important questions for Class 7 help students to understand the pattern and marking scheme of exam and also helps in knowing how questions are framed in exams.
What makes Infinity Learn’s Class 7 Science questions useful for CBSE exam prep?
Infinity Learn’s questions follow the latest CBSE syllabus and cover topics from Physics, Chemistry, and Biology. They also include diagrams, practical-based questions, and easy explanations of Questions.