Everything around us is called matter. Matter is anything which occupies spaces and has mass. Some examples of matter are wood, water, and air. Matter is found in 3 states: • Solid • Liquid • Gaseous Learn about the states of matter and their characteristics.

1. TOPIC
MATERIAL AND THEIR PROPERTIES

2. LEARNING OUTCOME
To learn about materials
To look into types of matter

3. LEARNING OBJECTIVE
Explain materials and their properties?

4. MATERIAL AND THEIR PROPERTIES
Everything that we see around us is made up of material.

5. MATERIAL AND THEIR PROPERTIES
Material is the substance or substances of which a thing is
made or composed such as metal, wood, plastics, glass
and fabrics.

6. MATERIAL AND THEIR PROPERTIES
Each material is made up matter, matter is a physical
substance which occupies space and has some weight.

7. MATERIAL AND THEIR PROPERTIES
PHYSICAL PROPERTIES OF MATTER

8. MATERIAL AND THEIR PROPERTIES
The properties of matter refer to the qualities/attributes
that distinguish one sample of matter from another.

9. MATERIAL AND THEIR PROPERTIES
Look
How do you recognize anything?

10. MATERIAL AND THEIR PROPERTIES
Look
We usually see its size, shape, position and feature to
recognize a particular thing.

11. MATERIAL AND THEIR PROPERTIES
Feel
Touch an iron rod, a piece of paper and a plastic bag.

12. MATERIAL AND THEIR PROPERTIES
Feel
What do you observe?

13. MATERIAL AND THEIR PROPERTIES
Feel
Do they feel different?

14. MATERIAL AND THEIR PROPERTIES
Feel
Yes, object made of different material feel different.

15. MATERIAL AND THEIR PROPERTIES
Smell
Smell hair oil, cooking oil and kerosene.

16. MATERIAL AND THEIR PROPERTIES
Smell
Do they smell same?

17. MATERIAL AND THEIR PROPERTIES
Smell
No, each of these has a unique smell, which helps us to
distinguish them.

18. MATERIAL AND THEIR PROPERTIES
Taste
Every material differ in taste.

19. MATERIAL AND THEIR PROPERTIES
Taste
Example
Sugar Tastes Sweet, Salt Taste Salty, Lemon Taste Sour.

20. MATERIAL AND THEIR PROPERTIES
Taste
We must be careful while tasting anything as it could
poisonous such as lead, mercury etc.

21. MATERIAL AND THEIR PROPERTIES
Density
We may have observed that things of same size have
different weights, like feather, a sponge or a wood.

22. MATERIAL AND THEIR PROPERTIES
Density
This is because the material out of which the object is
made, are packed more densely or closely than other.

23. MATERIAL AND THEIR PROPERTIES
Solubility
It describes how well a substance dissolves in another
substance.

24. MATERIAL AND THEIR PROPERTIES
Solubility
Solubility is a measure of how easily the substance
dissolves in water.

25. MATERIAL AND THEIR PROPERTIES
Materials that dissolve in water are called soluble
substances.

26. MATERIAL AND THEIR PROPERTIES
Example
Sugar, Salt, Milk Powder Etc.

27. MATERIAL AND THEIR PROPERTIES
Materials that do not dissolve in water are called insoluble
substances.

28. MATERIAL AND THEIR PROPERTIES
Example
Wood, Stone Etc.

29. LEARNING OUTCOME
To learn about materials
To look into types of matter

30. MATERIAL AND THEIR PROPERTIES
WHAT IS MATTER MADE OF?

31. MATERIAL AND THEIR PROPERTIES
Matter is made up of tiny particles called molecules.
Molecule is a group of atoms bonded together.

32. MATERIAL AND THEIR PROPERTIES
Atoms are so small, that they cannot be seen by naked
eye.

33. MATERIAL AND THEIR PROPERTIES
The molecules of every substance are different from the
molecules of any other substance.

34. MATERIAL AND THEIR PROPERTIES
Observe a tiny grain of a sugar and a salt using a
magnifying glass.

35. MATERIAL AND THEIR PROPERTIES
You will find that sugar crystal is very different from salt.

36. MATERIAL AND THEIR PROPERTIES
THREE STATES OF MATTER

37. MATERIAL AND THEIR PROPERTIES
Matter can exist in one of three main states:
SOLID,
LIQUID, OR
GAS.

38. MATERIAL AND THEIR PROPERTIES
SOLID STATE

39. MATERIAL AND THEIR PROPERTIES
Material that retains its shape and volume is called solid.

40. MATERIAL AND THEIR PROPERTIES
Example
Building, Stone, Tin Box Etc.

41. MATERIAL AND THEIR PROPERTIES
LIQUID STATE

42. MATERIAL AND THEIR PROPERTIES
Material that does not retain its fixed shape is called liquid.

43. MATERIAL AND THEIR PROPERTIES
Liquid matter is made of more loosely packed particles.

44. MATERIAL AND THEIR PROPERTIES
It will take the shape of its container.

45. MATERIAL AND THEIR PROPERTIES
Particles can move about within a liquid, but they are
packed densely enough that volume is maintained.

46. MATERIAL AND THEIR PROPERTIES
GASEOUS STATE

47. MATERIAL AND THEIR PROPERTIES
Our atmosphere contains a large mixture of gases, which
occupy much of the space around the globe.

48. MATERIAL AND THEIR PROPERTIES
Gaseous matter is composed of particles packed so
loosely that it has neither a defined shape nor a defined
volume.

49. MATERIAL AND THEIR PROPERTIES
It assumes the shape and volume of its container.

50. MATERIAL AND THEIR PROPERTIES
Gas can flow and expands to fill all the space available to
it.

51. MATERIAL AND THEIR PROPERTIES
A gas can be compressed.

52. MATERIAL AND THEIR PROPERTIES
When gas is compressed, its molecules have to huddle
together.

53. MATERIAL AND THEIR PROPERTIES
Pretty soon they're bonding to form a liquid.

54. MATERIAL AND THEIR PROPERTIES
Further compression will lock them together tightly to
make a solid.

55. MATERIAL AND THEIR PROPERTIES
CHANGES IN A MATTER

56. MATERIAL AND THEIR PROPERTIES
Matter changes its form under certain conditions, like
heating or cooling.

57. MATERIAL AND THEIR PROPERTIES
When we take out ice cubes from freezer, they are hard
and solid.

58. MATERIAL AND THEIR PROPERTIES
After a few minutes, it starts melting and turns into a
liquid. Why is it so?

59. MATERIAL AND THEIR PROPERTIES
Why is it so?

60. MATERIAL AND THEIR PROPERTIES
Matter changes its state from solid to liquid or to a gas
because of the change in their molecules.

61. MATERIAL AND THEIR PROPERTIES
Heating can change solids into liquids or gases.

62. MATERIAL AND THEIR PROPERTIES
On heating temperature rises and molecules absorb heat
to become freer and move apart.

63. MATERIAL AND THEIR PROPERTIES
Most solids melt into liquid when they are heated.

64. MATERIAL AND THEIR PROPERTIES
When we boil water in a kettle it changes to vapour.
Why is it so?

65. MATERIAL AND THEIR PROPERTIES
This happen because water molecules in the kettle
become restless on heating and move further apart and
comes out from the spout in the form of vapour.

66. MATERIAL AND THEIR PROPERTIES
Liquid evaporates into a gas when it is heated.

67. MATERIAL AND THEIR PROPERTIES
On freezing water (liquid), it changes to ice (solid).
Why is it so?

68. MATERIAL AND THEIR PROPERTIES
On freezing water molecules give up their heat and settle
closer together.

69. MATERIAL AND THEIR PROPERTIES
Thus liquid water becomes solid and hard.

70. MATERIAL AND THEIR PROPERTIES
A liquid freezes into a solid when it is cooled and a gas
condenses into a liquid when it is cooled.

71. MATERIAL AND THEIR PROPERTIES
These changes from one substance to another are called
changes in state of matter.

72. LEARNING OUTCOME
To learn about materials
To look into types of matter

73. LEARNING OUTCOME
To practice pronunciation
To work on basic English speaking
To look into greetings and general things

74. WHITEBOARD