Question

A. Choose the correct answer.

1. Which of the following is not a solid?
a. Button b. Sugar c. Ink d. Rice
2. Which of the following is soluble in water?
a. Stone b. Salt c. Sand d. Rice
3. Which of the following has a fixed volume?
a. Ice cube b. Smoke c. Air d. Perfume
4. Which of the following process is opposite to evaporation?
a. Melting b. Freezing c. Condensation d. Boiling
5. When we pour water from jug into a glass, what shape does it take?
a. Shape of jug b. Shape of glass c. Shape does not change
d. None of these

B. Answer in one word.

1. A mixture of solute and solvent. __________
2. A solid substance which dissolves in a liquid. __________
3. Change of liquid state into gaseous state. __________
4. Matter is made up of these tiny particles. __________
5. It has a definite shape and volume. __________
C. Answer the following questions.

1. What is matter made up of? ________________________________________________________________________________________________________________________________________________________________________________________________
2. Why do clothes dry faster in summers than in winters? ________________________________________________________________________________________________________________________________________________________________________________________________
3. State three properties of gases. ________________________________________________________________________________________________________________________________________________________________________________________________
D. Write the change of state (freezing, melting, sublimation, condensation, evaporation) that takes place in the following statements.

1. Ice is left out on the counter. __________
2. Camphor fumes in air when kept uncovered. __________
3. Water is left in a freezer. __________
4. Clothes are left out to dry. __________
5. Naphthalene balls become small when kept in woolen clothes. __________
6. A pond gets shallower at the end of a long hot summer. __________
7. Your hair was wet when you left the house, but dries by the time you get to school. __________
8. The ice cream you are eating drips down your arm. __________
9. A cold drink is wet on the outside of the glass. __________

Answer 1

Answer:

A 1 c

2b

3a

4c

5b

B section

1solution

2solute

3evaporation

4atoms

5solid

c section

1 matter is .ade up of very tiny particles called atoms.

2 in summers the moisture present in atmosphere and also the temperature of the atmosphere is high that's why they dry up faster.

3 gas particles are very far from each other

gas do not have definite shape and size

gas do not have definite volume..

d section

1melting

2sublimation

3. freezing

4 evaporation

5sublimation

6 evaporation

7 evaporation

8melting

9 evaporation....

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