ASMO Science 2022 - Level 3 (Grade 7-9) - School Round

Question 1

1. to carry oxygen to the cells.
2. to remove waste products from the cells.
3. the blood in a wound to clot.
4. the blood to flow through narrow capillaries.
5. None of the above

Question 2

1. Excretion
2. Digestion
3. Cell respiration
4. Mineral absorption
5. None of the above

Question 3

1. hormones.
2. mineral salts.
3. urea.
4. heat.
5. None of the above

Question 4

1. To soften the leaf
2. To remove the chlorophyll
3. To kill the cells of the leaf
4. To dissolve the cell walls
5. None of the above

Question 5

1. Starch
2. Oxygen
3. Mineral salts
4. Carbon dioxide
5. None of the above

Question 6

1. Potential energy → kinetic energy → sound energy
2. Chemical energy → potential energy → sound energy
3. Chemical energy → kinetic energy → sound energy
4. Kinetic energy → potential energy → sound energy
5. None of the above

Question 7

1. it is very light.
2. it is easily obtained from the air.
3. it does not burn.
4. it does not support combustion.
5. None of the above

Question 8

1. Rusting of iron
2. Decay of tree trunks
3. Making of food by green plants
4. Burning of rubbish in incinerators
5. None of the above

Question 9

1. preventing night blindness.
2. producing haemoglobin.
3. absorbing vitamins.
4. building up bones.
5. None of the above

Question 10

1. Scorpion, centipede, grasshopper, toad
2. Cockroach, snail, earthworm, spider
3. Millipede, housefly, lizard, beetle
4. Turtle, frog, pigeon, rabbit
5. None of the above

Question 11

1. It kills bacteria in the blood.
2. It neutralizes harmful substances in the blood.
3. It prevents a person from getting anaemia.
4. It carries oxygen to the cells.
5. None of the above

Question 12

1. Non-flowering plants
2. Flowering plants
3. Vertebrates
4. Invertebrates
5. None of the above

Question 13

1. Exhaled air contains more nitrogen than inhaled air.
2. Exhaled air contains less heat than inhaled air.
3. Exhaled air contains less rare gases than inhaled air.
4. Exhaled air contains more water vapour than inhaled air.
5. None of the above

Question 14

1. Frying rice in a pan
2. Being kept warm by a camp fire
3. Boiling water in an electric kettle
4. The movement of air in an air-conditioned room
5. None of the above

Question 15

1. to filter dead cells from the blood.
2. to filter waste products from the blood.
3. to remove excess fat from the blood.
4. to remove excess water from the blood.
5. None of the above

Question 16

Question 17

Question 18

Question 19

Question 20