The temperature at which a liquid gets converted into a solid is called …………… point.

1. Boiling
2. Condensation
3. Melting
4. Freezing

Which of the following is not a characteristic of molecules of matter?

1. Molecules have a very large size.
2. Molecules are constantly moving.
3. Molecules have spaces between them.
4. Molecules attract each other.

Write one word or few words for the following.

(a) The temperature on which a solid gets changed into a liquid

(b) It is formed by combining two or more atoms

(c) It can be beaten either into sheets or into powdered form

(d) The molecules are loosely packed in this state of matter

(e) It has neither a fixed shape nor a fixed volume

Define the following terms.

(a) Intermolecular space

(b) Condensation

(c) Freezing point

(d) Intermolecular force of attraction

(e) Evaporation