PSLE Adventure 3

The diagram below shows examples of adaptations of plants G, H, J and

K. Which adaptation(s) help(s) the plant to receive more water?

• G only

• G and K only

• H and J only

• H, J and K only

3. Study the diagram below which shows some characteristics of Organism

X. What can Organism X be?
A. Mould

1. B. Mushroom

2. C. Earthworms

3. D. Bird's nest fern

• 1. A and B only

• 1. B and C only

• 1. C and D only

• 1. A, B and D only

The diagram below shows a plant with an adaptive feature labelled A.

Which one of the following statements about the adaptive feature shown above is correct?

• 1. Part A helps the plant to absorb water.

• 1. Part A helps the plant to attract pollinators.

• 1. Part A helps the plant to reach for more sunlight.

• 1. Part A helps the plant to transport food and water to alt parts of the plant.

What is the function of cytoplasm in animal cell?

• 1. Controls cell activities

• 1. Controls inheritance from one generation to another

• 1. Controls the movement of substances within the cell

• 1. Controls the movement of substances in and out of the cell

Minnie opened the freezer door and observed white ‘clouds’ escaping from the freezer. Which one of the following is a true statement about the white ‘clouds’ seen?

• The ‘clouds’ seen are steam formed during the process of condensation.

• Water droplets from in the refrigerator evaporated to form the ‘clouds’.

• Water vapour from the cold air Jost heat to the warmer surrounding air and condensed to form the clouds’.

• Warmer water vapour from surrounding air lost heat to the cold air and condensed to form the ‘clouds’.

The circuit diagram below shows how the various components are connected together. Which one of the following observations is correct?

• When only S1 and S2 were closed, bulb W was lit,

• When only S1 was closed, all the bulbs were lit.

• When only S3 was closed, bulbs X, Y and Z were lit.

• When only S2 and S3 were closed, none of the bulbs lit up

3. Jerry found an egg of animal X. After the egg had hatched, he observed the animal over a period of time and recorded his observations in the table. What is animal X?

• 1. Frog

• 1. Butterfly

• 1. Mosquito

• 1. Cockroach

3. The diagram below shows a developing human foetus in a mother's womb. Which of the following statements about the developing foetus are correct?

   
   

   1. A. It is formed from one fertilised egg cell.

   2. B. As it develops and grows bigger, the cells need to grow larger in size.

   3. C. The genetic information of the father can be passed on to the foetus only when it is fully formed.

   4. D. The fertilised egg divides to form many cells and they form the different parts of the developing baby.

   
   

• 1. A and D only

• 1. B and C only

• 1. B, C and D only

• 1. A, B and D only

he diagram below shows 4 cubes of equal mass supported in different ways. Cubes A and C are hung from a support while B and D are balanced on their support. Which one of the following statements is true about the amount of gravitational potential energy the cubes possess?

• A is equal to B

• A is greater than B

• C is greater than D

• All the cubes have the same amount

Which of the following characteristics is found in insects, but not in other animals?

• They lay eggs.

• 1. They have wings.

• They have feelers.

• 1. They have three body parts.