The document discusses the three common states of matter - solids, liquids, and gases. Solids have a definite shape and volume, while liquids have an indefinite shape but definite volume. Gases have indefinite shapes and volumes. It also describes the properties of each state in terms of particle behavior and attraction. The three states of water are identified as ice, liquid water, and water vapor. Matter can change states, such as ice melting into water when heat is applied, which provides particles with enough energy to overcome attractive forces and transition to a liquid state.

1. States of matter

2. Has a definite shape

3. Has a definite volume

4.  Has indefinite shape
(They take the shape of the container)

5. Has a definite volume

6.  Has indefinite shape
(They take the shape of the container)

7. Has a indefinite volume

8. 1) Particles are : tightly packed together
( very close to each other )

9. 2) Attraction force : between the particles is
very strong

10. 1) Particles are : moderately attached to
each other

11. 2) Attraction force : between the particles is
moderate

12. 1) Particles are : far from each other

13. 2) Attraction force : between the particles is
very weak

14. States of water
 Solid state of water is :
 Liquid state of water is :
 Gas state of water is :
ice
vapour
water

15. matter can change its state
Can ice change into water? How ?
By heating
Heating gives the particles energy

16. Melting
A change of state from solid to liquid

17. Melting point
Temperature at which a substance
changes from solid to liquid
 Melting point of water is 0°c