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Test: Weather, Water and Air- 2


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10 Questions MCQ Test Science for Class 4 | Test: Weather, Water and Air- 2

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Test: Weather, Water and Air- 2 - Question 1

Which of the following is NOT true regarding the properties of air? 

Detailed Solution for Test: Weather, Water and Air- 2 - Question 1

Air is a matter. It has mass.

Test: Weather, Water and Air- 2 - Question 2

The burning of fire needs

Detailed Solution for Test: Weather, Water and Air- 2 - Question 2

The burning of fire needs oxygen.

The Secret Science of Flames - American Chemical Society

Test: Weather, Water and Air- 2 - Question 3

Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?

Detailed Solution for Test: Weather, Water and Air- 2 - Question 3

Hot air has less weight.

Does hot air have more mass than cold air? - Quora

Test: Weather, Water and Air- 2 - Question 4

When Suresh blew air into a balloon it expanded. This shows that

Detailed Solution for Test: Weather, Water and Air- 2 - Question 4

Air occupies space.

Test: Weather, Water and Air- 2 - Question 5

Which of the following does NOT disturb the balance of gases in the air?

Detailed Solution for Test: Weather, Water and Air- 2 - Question 5

Trees and plants maintain the balance of gases in the air.

Test: Weather, Water and Air- 2 - Question 6

When we blow air into a balloon it expands. What is the reason?

Detailed Solution for Test: Weather, Water and Air- 2 - Question 6

Air exerts pressure on the walls of the balloon and it expands.

Test: Weather, Water and Air- 2 - Question 7

Which of the following changes weather?

Detailed Solution for Test: Weather, Water and Air- 2 - Question 7

The sun changes the weather conditions.

Test: Weather, Water and Air- 2 - Question 8

Answer questions 10 based on the following figure.

            

Arrow 1 represents

Detailed Solution for Test: Weather, Water and Air- 2 - Question 8

Arrow 1 represents land breeze.

Test: Weather, Water and Air- 2 - Question 9

Germs present in tap water can be killed by

Detailed Solution for Test: Weather, Water and Air- 2 - Question 9

Germs present in tap water can be killed by boiling.

Test: Weather, Water and Air- 2 - Question 10

The figure below shows an activity which was carried out in a laboratory.

Which of the following phenomena was exhibited by 'X?

Detailed Solution for Test: Weather, Water and Air- 2 - Question 10

In the given figure 'X' represents the condensation of water vapour.

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