1. Object M can float in water but object N cannot. M and N are respectively
M | N | |
A | plastic ruler | metal fork |
B | rubber slipper | plastic cup |
C | paper | ice-cream stick |
D | coin | wooden ruler |
2. Which of the following is not true ?
Object | Resource | |
A | Flower pot | Soil |
B | Leather shoe | Animal |
C | Wooden chair | Plant |
D | Wooden table | Petroleum |
3. What makes iron rust?
A Exposure to air only.
B Exposure to water only
C Exposure to sunlight only
D Exposure to air and water only
4. Rusting of iron can be prevented by
I painting
II applying oil
III applying grease
IV spraying water
A I only
B I and II only
C I, II and III only
D I, II, III and IV.
5. Which of the following cannot rust?
I needle
II wooden table
III paper clip
IV handbag
A I and II only
B I and III only
C II and III only
D II and IV only
6. Which statement is true?
A Wood floats on water and is used to make furniture only
B Glass is easily breakable and does not absorb water
C Silk is waterproof and used to make umbrellas
D Plastic is stiff and dense.
7. The diagram shows objects made of the same material.
Which material is used to make the objects above?
A Wood
B Glass
C Plastic
D Rubber 8. The diagram shows two objects.
Which of the following explain why synthetic cloth is used to make part P of the objects?
I It is a good conductor of heat
II It does not absorb water
III It is a strong material
A I and II only
B II and III only
C I and III only
D I, II and III
9. Mr. Lim placed bottles of iced water and chilled drinks in the polystyrene box for a picnic. Why was polystyrene used?
A It is light
B It does not melt
C It does not break
D It keeps drinks cold
10. Which of these methods can be used to prevent rusting?
I Coating iron with paint
II Coating iron with oil
III Coating iron with paper
IV Coating iron with grease
A I and II
B I, II and III
C I, II and IV
D I, II, III and IV
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