Properties of Materials

3. Look around this room and name the objects you see.

4. a. strength
*The plastic bag is
strong; it can hold
heavy things.

5. b. hardness
*Sometimes, there
leave scratch
marks on the
board. The wooden
board but metal
knife is harder.

6. c. buoyancy
*The wooden
boat floats
on the water.

7. 01
d. flexibility
*It can be bent
without breaking
because the rubber
tube is flexible.

8. 01
e. elasticity
*stretching *compressing

9. f. transparency

10. Can it bend
or not?
Is it strong?
What do you think of this object?
Is it hard or
soft?
Is it opaque or
transparent?
Can it
float or
sink?
Does it
absorb water
or not?

11. Let us take a look a few everyday
items:
-are strong
- will not break easily
- do not bend easily
What if it is made of rubber
or cloth? What will happen?

12. Some are strong.
Some are weak.
Some are hard
Some are soft.

13. Some can float.
Some cannot float. Some are not
flexible.
Some are flexible.

14. -is transparent
-can hold water without breaking
-is brittle
- has high resistant to heat
Just imagine if it is made up of
metal or wood. What will happen?

15. -is elastic and flexible
-can expand when air is
blown
Just imagine if it is made up
of cloth. What would happen?

16. -is waterproof
- can walk in puddles
without getting wet
Just imagine if it is made up of
metal or cloth. What will happen?

17. gold ring iron nails aluminium can steel knife
- are strong and hard
- are shiny
- can’t float on the
water

18. vase cup plates pot
- are opaque
- are brittle
- have high resistant to heat

19. metal
frying pan
Combination of Materials
wood
rubber
plastic

20. cloth
-soft to
sit down
wood
-to hold strongly
the whole set
Combination of Materials

21. A. Fill in the table: Look at the picture and identify what
material each item is made of.

22. B. Short answer:
1. You want to buy a bag to carry books to
school. What materials are you going to choose
and why?

23. 2.What will happen if the wide-screen of
a car is made up of metal or plastic?

24. C. Name the materials used to make each
thing below. List ONE property of each
material.
Material:
__________
Property:
__________
Material:
__________
Property:
__________

25. D. Label the picture below according
to its combined materials.