Tamil Nadu Board of Secondary EducationTamil Nadu Primary School Class 4th
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Question Bank Solutions for Tamil Nadu Primary School Class 4th - Tamil Nadu Board of Secondary Education - Science

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Science
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What do you do when someone touches you and you feel uncomfortable?

[0.011000000000000001] My Body
Chapter: [0.011000000000000001] My Body
Concept: Human Organ System

Which organ controls thinking, speaking, and learning. Write its three important parts.

[0.011000000000000001] My Body
Chapter: [0.011000000000000001] My Body
Concept: Human Organ System

Find the odd one.

brick, coir, silk cloth, pine apple

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Find the odd one.

Umbrella, sponge, rain coat, jerkin

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Materials which can be compressed or cut easily are called _______.

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Gold and diamond are the examples of _________ materials.

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Materials which can be bent or stretched easily are called ______.

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

We cannot compress, cut or bend the rough materials easily.

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Look at the pictures and identify the materials by which they are made of:

(paper, clay, glass, wood, plastic, metal rubber, wax

 

____________ ____________ ____________ ___________ _____________
____________ ____________ ____________ ____________ ____________
[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Match the objects that are made of the same material.

A B C
[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Write whether the given materials are hard or soft.

Wood  Eraser  Cotton
______ ______ ______
[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Sand paper is a good example for smooth materials.

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Sort the given objects as rough or smooth.

Wet soap Coir Feather Stone
______ ______ ______ ______
Glass ball Paperboard Sand paper Plastic spoon
______ ______ ______ ______
[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

Test the flexibility.

Give one plastic scale and a wooden scale to the students. Ask them to bend. Tabulate their observation (bends, does not bend).

Plastic Scale Wooden Scale
______ ______
[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

When can you say a material is waterproof material?

[0.012] Matter and Materials
Chapter: [0.012] Matter and Materials
Concept: Material and Its Properties

________ is said to be done when a force is acting on it.

[0.013000000000000001] Work and Energy
Chapter: [0.013000000000000001] Work and Energy
Concept: Introduction of Work

Mention whether work is done or not in the following activity.

S. No Activity Work done or not done
1. Pushing the door  
2. Holding a doll  
3. Sitting in a bus  
4. Pushing a wall  
5. Digging soil  
[0.013000000000000001] Work and Energy
Chapter: [0.013000000000000001] Work and Energy
Concept: Introduction of Work

Primary source of energy for the young ones of some animals is ______

[0.013999999999999999] Science in Everyday Life
Chapter: [0.013999999999999999] Science in Everyday Life
Concept: Milk

Vitamin present in milk that helps us to maintain our bones is

[0.013999999999999999] Science in Everyday Life
Chapter: [0.013999999999999999] Science in Everyday Life
Concept: Milk

_______ is a raw food.

[0.021] Food
Chapter: [0.021] Food
Concept: Food and Its Types
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