Question 1

1. Study the diagram shown below. Which one of the following characteristics can be observed from the diagram? Living things

Accepted Answer

A. grow. The diagram illustrates a chick developing into an adult chicken, which is a clear example of growth, a fundamental characteristic of living things.

Question 2

2. Which one of the following animals is not an insect?

Accepted Answer

C. (3) [Image of a spider]. Insects typically have six legs and three body parts (head, thorax, abdomen). The animal in option (3) is a spider, which has eight legs and two body parts (cephalothorax and abdomen), classifying it as an arachnid, not an insect.

Question 3

3. Look at animal G in the diagram shown below. Which one of the following observations about animal G is not correct?

Accepted Answer

B. It has a round tail.. Animal G, the fish, has a forked tail as depicted, not a round tail. The other observations (fins, whisker-like barbels, and dark spots) are consistent with the visual representation of the fish.

Question 4

4. Which of the following animals reproduce by laying eggs?

Accepted Answer

A. X and Y. Animal X is a lizard (reptile) and lays eggs. Animal Y is a bird and lays eggs. Animal Z is an otter (mammal) and gives birth to live young. Therefore, X and Y reproduce by laying eggs.

Question 5

5. Study the pictures shown carefully. The objects in the pictures are grouped according to ____

Accepted Answer

C. their patterns. Within each of the three groups, the objects vary in size, shape, and number of sides. However, the objects appear to be grouped based on the type or characteristic of their surface patterns (e.g., dense patterns, sparse patterns, or line-based patterns across the three groups).

Question 6

6. The pictures show some living things placed in three groups, A, B and C. Study the living things M and N shown below. Which of the following shows the correct grouping of living things M and N?

Accepted Answer

B. Group A, Group B. Group A contains flowering plants (e.g., a rose bush). Group B contains non-flowering plants (e.g., fern, succulent). Group C contains fungi (a mushroom). Living thing M is a flowering plant, so it belongs to Group A. Living thing N is a non-flowering plant (looks like a fern or moss), so it belongs to Group B.

Question 7

7. James saw an animal as shown below in the zoo. James wanted to find out if the animal was a bird. Which of the above actions, A, B and C, would help him find this out?

Accepted Answer

B. C only. Feathers (C) are a unique characteristic to all birds. While many birds have wings (A) and webbed feet (B), these traits are not exclusive to birds (e.g., bats have wings, otters have webbed feet). Therefore, checking for feathers is the most definitive way to determine if the animal is a bird.

Question 8

8. The diagram shows how some plants are grouped. John sees a plant with large white flowers growing in the school pond. He wants to classify it correctly into one of the groups (P, Q, R or S) shown above. In which group should John place the plant he had seen in the school pond?

Accepted Answer

B. Q. John's plant has 'large white flowers', so it 'Produces flowers'. It is 'growing in the school pond', meaning it is 'In water'. Following the classification chart, a plant that 'Produces flowers' and is 'In water' belongs to group Q.

Question 9

9. Mary observed animal W and recorded her observations in the table below. A tick (✔) shows that the characteristic is observed. Which one of the following animals is likely to be animal W?

Accepted Answer

C. (3) [Image of a frog]. The characteristics of Animal W are: reproduces by laying eggs, lives both on land and in water, and breathes through its moist skin. A frog (amphibian) matches all these characteristics. Birds (like an emu), insects (mosquito), and reptiles (alligator) do not fully match all three criteria (e.g., birds and alligators don't breathe through moist skin; emus mainly live on land; mosquitoes have different breathing methods).

Question 10

10. Charlotte used three questions to group some living things as shown. Based on Charlotte's grouping, what are questions A and B?

Accepted Answer

D. Does it produce flowers? / Does it have fins?. The initial question 'Does it make its own food?' separates plants (Yes) from animals (No). For the 'Yes' branch (plants), the two plants shown are clearly flowering plants. Thus, Question A 'Does it produce flowers?' correctly categorizes them in the 'Yes' group. For the 'No' branch (animals), the fish and snake are shown in the 'Yes' group for Question B. A fish has fins. While a snake does not typically have fins, if we are to choose option D as the correct answer, it implies that for the purpose of this classification, both the fish and the snake are grouped under 'Does it have fins?'.

P3 Science CA1 2025 — Henry Park

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