In which of the three states of matter - solids, liquids or gases is the movement of atoms about their own position. Give a reason for the same.

State which of the three states of matter i.e. solids, liquids or gases - have a] No definite volume b] A definite shape c] High density e] No free surfaces f] Particles - which diffuse very easily.

Differentiate the three states of matter in terms of movement of particles.

Name the three states of matter, giving two examples of each.

Give three examples each of solid, liquid and gaseous covalent compounds.

Give three examples of a sentence which are not statements. Give reasons for the answer.

Can sound pass through solids, liquids, and gases? Give reason.

Out of solids, liquids, and gases, which can be compressed the most?

Which process refers to the change of state from liquid to solid?

State which expands more, when heated to the same temperature : solid, liquid or gas ?

The point where all the three state (solid, liquid, vapour) of H_2O exist is known as