CBSE Class 3 Science Worksheet I

Access the latest CBSE Class 3 Science Worksheet I. We have provided free printable Class 3 Science worksheets in PDF format, specifically designed for All Chapters. These practice sets are prepared by expert teachers following the 2025-26 syllabus and exam patterns issued by CBSE, NCERT, and KVS.

All Chapters Science Practice Worksheet for Class 3

Students should use these Class 3 Science chapter-wise worksheets for daily practice to improve their conceptual understanding. This detailed test papers include important questions and solutions for All Chapters, to help you prepare for school tests and final examination. Regular practice of these Class 3 Science questions will help improve your problem-solving speed and exam accuracy for the 2026 session.

Download Class 3 Science All Chapters Worksheet PDF

A. Tick the correct answer. 
 
1. Gentle wind is called
 
a. Gale                  b. Breeze                c. Storm                d. All of these
 
2. Water vapour is a
 
a. Gas                  b. Solid                   c. Liquid                 d. All of these
 
3. All plants and animals breathe in
 
a. Nitrogen           b. Carbon dioxide     c. Oxygen d. None of these
 
4. Days are longest during
 
a. Summer           b. Winter                 c. rainy                   d. All of these
 
5. Plants grow well in
 
a. Loamy soil        b. Sandy soil            c. Clayey soil          d. All of these
 
6. Which of this is the hardest rock?
 
a. Coal                 b. Chalk                   c. Diamond             d. None of these
 
B. Name the following. 
 
1. Rotten plants and animals .
 
2. Rocks are made up of small grains.
 
3. Moving air.
 
C. Choose the correct answer. 
 
1. When you breathe polluted air
 
a) you feel fresh.
 
b) you get sick.
 
c) you feel sleepy.
 
2. Air consists of
 
a) only oxygen.
 
b) water vapour.
 
c) several gases.
 
3. The Earth is made up of
 
a) rocks and soil.
 
b) plastic and glass.
 
c) metals and wood.
 
D. Answer the following questions. 
 
1. Name two animals that live in the soil.
 
2. Which gas is used by plants to make food?
 
3. What is gale?
 
E. Give reasons.
 
1. Plants do not grow in sandy soil. Why?
 
2. Wet clothes dry faster in summer season.
 
3. We wear woollen clothes in winter. Why?
 
F. Look at the diagram given below and answer the following questions. 
 
CBSE Class 3 Science Worksheet I
 
1. Identify the type of soil.
 
2. Can this soil hold water? (Yes/No)
 
3. Give one use of this soil.
 
G. Differentiate. 
 
1. Rainy season and summer season
 
2. Chalk and diamond

 

New Words ( copy New words twice in notebook)
1. Search  2. Moulds       3.mushrooms
4. rotting   5. Dead           6. Pores
7. gills      8. Balance        9. Tiny
10. lays   11. Reproduce 12. Breathe.

Define the following terms:
1. Pore: very tiny holes.
2. Stomata: tiny pores in leaves which helps plants in breathing.

Answers
1. Animals moves from one place to place in search of food.
2. Animals get their food from the plants and other animals.
3. Following are the three different breathing organs:-
a) Lungs
b) Gills
c) Air-holes
4. The two ways by which animals breathe are as follows:-
a) By laying eggs
b) By giving birth to their young one.
5. We all know that animals depend on each other to live. If there are just enough plants, just enough plant eating animals and just enough flesh eating animals in the world there is a balance in nature.

Extra questions

Q.6 How do plants breathe?
Ans: Plants breathe through tiny pores on their leaves called stomata.

cbse-class-3-science-worksheet-i

Q.7 From where do Non-green plants get food?
Ans: Non-green plants moulds and mushroom get their food from dead and rotting matter.

Q.8 How does green plants make their food ? Also draw diagram.
Ans: Green plants make their food with help of air, water and sunlight.

cbse-class-3-science-worksheet-i

Please click on below link to download CBSE Class 3 Science Worksheet I

Practice Worksheets Class 3 Science
CBSE Class 3 Science Worksheet A
CBSE Class 3 Science Worksheet B
CBSE Class 3 Science Worksheet C
CBSE Class 3 Science Worksheet D
CBSE Class 3 Science Worksheet E
CBSE Class 3 Science Worksheet F
CBSE Class 3 Science Worksheet G
CBSE Class 3 Science Worksheet H
CBSE Class 3 Science Worksheet I
CBSE Class 3 Science Worksheet J
CBSE Class 3 Science Worksheet K
CBSE Class 3 Science Worksheet L
CBSE Class 3 Science Worksheet M
CBSE Class 3 Science Worksheet N
CBSE Class 3 Science Worksheet O
CBSE Class 3 Science Worksheet P
CBSE Class 3 Science Worksheet Q
CBSE Class 3 Science Worksheet R

Important Practice Resources for Free Printable Worksheets PDF

All Chapters CBSE Class 3 Science Worksheet

Students can use the All Chapters practice sheet provided above to prepare for their upcoming school tests. This solved questions and answers follow the latest CBSE syllabus for Class 3 Science. You can easily download the PDF format and solve these questions every day to improve your marks. Our expert teachers have made these from the most important topics that are always asked in your exams to help you get more marks in exams.

NCERT Based Questions and Solutions for All Chapters

Our expert team has used the official NCERT book for Class 3 Science to create this practice material for students. After solving the questions our teachers have also suggested to study the NCERT solutions  which will help you to understand the best way to solve problems in Science. You can get all this study material for free on studiestoday.com.

Extra Practice for Science

To get the best results in Class 3, students should try the Science MCQ Test for this chapter. We have also provided printable assignments for Class 3 Science on our website. Regular practice will help you feel more confident and get higher marks in CBSE examinations.

Where can I download the latest PDF for CBSE Class 3 Science Worksheet I?

You can download the teacher-verified PDF for CBSE Class 3 Science Worksheet I from StudiesToday.com. These practice sheets for Class 3 Science are designed as per the latest CBSE academic session.

Are these Science Class 3 worksheets based on the 2026 competency-based pattern?

Yes, our CBSE Class 3 Science Worksheet I includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 3.

Do you provide solved answers for CBSE Class 3 Science Worksheet I?

Yes, we have provided detailed solutions for CBSE Class 3 Science Worksheet I to help Class 3 and follow the official CBSE marking scheme.

How does solving CBSE Class 3 Science Worksheet I help in exam preparation?

Daily practice with these Science worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 3 students get more marks in CBSE exams.

Is there any charge for the Class 3 Science practice test papers?

All our Class 3 Science practice test papers and worksheets are available for free download in mobile-friendly PDF format. You can access CBSE Class 3 Science Worksheet I without any registration.