(1) Dark clouds are made of matter but white clouds are not.

(3) The shape of solids and liquids is fixed.

(4) Smallest particle of water is an atom.

(5) Packing of molecules is most dense in solids.

(6) Particles of matter in a gas move in a circular fashion.

(7) Movement of particles in gases is much more than in solids.

(2) Blue colour of the sky is also because of matter.

(1) Inter-molecular space is ____________ in gases.

(2) Liquids are denser than ____________.

(3) Molecules in solids are ____________ packed.

(4) Water forms drops because of ____________.

(5) A molecule of oxygen has two atoms of ____________.

(6) Compressibility is maximum in ____________.

(7) Solids and liquids have definite ____________.

(1) Stretchable layer, fixed shape, fixed size, fixed volume.

(3) No fixed shape, visions, flow, no fixed volume.

(4) No texture, fixed shape, compressible, no fixed volume.

(2) No shape, no size, no volume, does not need a container.

(5) What is 'inter molecular' attraction?

(6) Draw molecular models of solids and liquids.

(1) How do we define matter?

(2) Differentiate between solid and liquid on one criteria.

(3) What are the states of matter?

(4) Why don’t solids change shape like liquids?

(7) How can you prove that liquids have intermolecular spaces?

(2) Why does a grain of salt dissolve on its own, in water?

(6) How can you prove that molecules of water stick together?

(1) Explain how the solid state of matter differs from the gaseous state of matter?

(3) Describe the arrangement of particles in solid, liquid and gas.

(4) Explain why liquids take the shape of the container but solids do not?

(5) Describe an experiment to prove that molecules in liquids are always in motion.

(7) Which properties of solids are dependent upon its particles being tightly packed?

Gases

Gases

Stretchable Layer

Solids

Solids

Only gases

Liquid