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Science questions, unit 5
Nama / NameKelas / ClassTarikh / Date

Plants

30 marks. Use Practice to check each answer as you go, or Exam to answer everything first. Ask a grown-up to help you mark the written answers.

Section A: objective questions

12 marks
Choose the best answer for each question.
1

Question 1

Birds make nests in a big tree. What does the tree give the birds?
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A
A habitat is a home. Birds live in the tree.
For the teacher: Remembering, low difficulty, standard 5.1.1
Textbook p. 50
2

Question 2

Which is something that plants give to humans?
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C
We eat vegetables and fruits from plants.
For the teacher: Remembering, low difficulty, standard 5.1.1
Textbook p. 50
3

Question 3

What does a seed need to germinate?
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B
A seed needs water, air and a suitable temperature to germinate.
For the teacher: Remembering, low difficulty, standard 5.1.2
Textbook p. 51
4

Question 4

Sam puts some seeds in a pot of dry soil. He does not water them. The seeds do not germinate. Why?
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D
Seeds need water to germinate.
For the teacher: Understanding, low difficulty, standard 5.1.2
Textbook p. 51
5

Question 5

A maize plant has 2 leaves on day 3. On day 21 it has 14 leaves. How many more leaves does it have on day 21 than on day 3?
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C
14 − 2 = 12. The plant has 12 more leaves.
For the teacher: Applying, medium difficulty, standard 5.1.3
Textbook p. 52
6

Question 6

Diagram 1 shows a green bean plant on day 3, day 6 and day 9. What happens to the plant as it grows?
Three green bean seedlings on day 3, day 6 and day 9, each taller than the last
Diagram 1
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A
A growing plant gets taller.
For the teacher: Understanding, low difficulty, standard 5.1.3
Textbook p. 52
7

Question 7

What is the first stage in the growth of a tomato plant?
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D
A tomato plant starts as a seed.
For the teacher: Remembering, low difficulty, standard 5.1.4
Textbook p. 55
8

Question 8

Which stage comes just before the tomato plant produces fruits?
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B
The order is seed, germination, young plant, flowers, fruits. Flowers come before fruits.
For the teacher: Understanding, low difficulty, standard 5.1.4
Textbook p. 55
9

Question 9

Which are the basic needs of a plant?
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B
Plants need water, air and sunlight.
For the teacher: Remembering, low difficulty, standard 5.1.5
Textbook p. 58
10

Question 10

Diagram 2 shows four plants of the same size. After two weeks, which plant does not grow well because it has no sunlight?
Four pots: A no water, B all needs, C covered by a bag, D inside a box
Diagram 2
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D
Plant D is inside a box, so no sunlight reaches it.
For the teacher: Analysing, medium difficulty, standard 5.1.5
Textbook p. 56
11

Question 11

In Diagram 2, plant C is covered with a clear plastic bag. Which basic need does it lack?
Four pots: A no water, B all needs, C covered by a bag, D inside a box
Diagram 2
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A
The plastic bag stops air from reaching plant C. It still gets sunlight and water.
For the teacher: Analysing, high difficulty, standard 5.1.5
Textbook p. 56
12

Question 12

Why do we give fertiliser to plants?
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C
Fertiliser gives nutrients. Nutrients help plants grow and stay healthy.
For the teacher: Understanding, medium difficulty, standard 5.1.6
Textbook p. 58

Section B: structured questions

18 marks
Answer all the questions.
13

Question 13

Diagram 3 shows a garden. What do plants give in each case?
A garden with banana trees, vegetables, a big tree with a monkey and birds, and a person treating a wound with a plant
Diagram 3
[1 mark] (a)The woman picks vegetables.
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Food
[1 mark] (b)The monkey lives in the big tree.
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Habitat
[1 mark] (c)A plant is put on the boy's wound to treat it.
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Medicine
[1 mark] (d)Name one other thing that plants give to humans.
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Any 1 points
Tick each point you got.
For the teacher: Understanding, low difficulty, standard 5.1.1
Textbook p. 50
14

Question 14

A seed is in a pot. It gets a suitable temperature.
[2 marks] (a)Name two other things the seed needs to germinate.
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Tick each point you got.
For the teacher: Remembering, low difficulty, standard 5.1.2
Textbook p. 51
15

Question 15

Table 1 shows how a maize plant grows.
Part of the plantDay 3Day 9Day 15Day 21
Number of leaves251014
Size of leaf (cm)1.01.51.82.5
Circumference of stem (cm)0.30.50.81.0
Growth stages of a maize plant
Maize plant
[1 mark] (a)How many leaves does the plant have on day 21?
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Table 1: day 3 has 2 leaves, day 9 has 5, day 15 has 10 and day 21 has 14.
Tick each point you got.
[1 mark] (b)What is the circumference of the stem on day 9?
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Table 1: the stem circumference is 0.3 cm on day 3, 0.5 cm on day 9, 0.8 cm on day 15 and 1.0 cm on day 21.
Tick each point you got.
[1 mark] (c)State one change you see in the plant as it grows.
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Tick each point you got.
For the teacher: Applying, low difficulty, standard 5.1.3
Textbook p. 52
16

Question 16

These are the growth stages of a tomato plant, but they are mixed up: produce flowers, seed, produce fruits, young plant, germination of seed. Write them in the correct order.
[2 marks] (a)Write the five stages in order, from first to last.
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Tick each point you got.
For the teacher: Applying, medium difficulty, standard 5.1.4
Textbook p. 55
17

Question 17

Diagram 4 shows four plants of the same type and size, kept outside for two weeks.
Four pots: A no water, B all needs, C covered by a bag, D inside a box
Diagram 4
[1 mark] (a)Which plant does not get water?
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A
[1 mark] (b)Plant D does not grow well. Why?
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Tick each point you got.
[1 mark] (c)Which plant grows best?
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B
Plant B has water, air and sunlight.
[2 marks] (d)Name two basic needs of a plant.
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Any 2 points
Tick each point you got.
For the teacher: Analysing, medium difficulty, standard 5.1.5
Textbook p. 56
18

Question 18

Diagram 5 shows two plants of the same type and size. Both are watered every day and kept outside. Only plant A gets liquid fertiliser.
Two potted plants A and B, with liquid fertiliser being poured into pot A
Diagram 5
[1 mark] (a)Which plant grows better after two weeks?
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A
[1 mark] (b)Give a reason for your answer.
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Any 1 points
Tick each point you got.
For the teacher: Understanding, medium difficulty, standard 5.1.6
Textbook p. 58