Integrated Science – Year 7 – 2019 Page 1 of 12

DEPARTMENT FOR CURRICULUM,

LIFELONG LEARNING AND EMPLOYABILITY

Directorate for Learning and Assessment Programmes

Educational Assessment Unit

Annual Examinations for Middle Schools 2019

YEAR 7 INTEGRATED SCIENCE TIME: 1h 30min

Name: ________________________________ Class: _________________

ANSWER ALL QUESTIONS

1. Amelia, Matteo and Andrea are performing an experiment in the Science lab.

a. Write down what each of the students is doing wrong.

i) Amelia: ________________________________________________________

ii) Matteo: ________________________________________________________

iii) Andrea: ________________________________________________________

(3)

b. From the picture above, find one other thing that is not safe (wrong action) and

explain how it can be corrected (safe action).

Wrong action: _____________________________________________________

Safe action: ____________________________________________________ (2)

(TOTAL: 5 marks)

Amelia

Matteo Andrea

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2. When fighting a fire, the firefighters use different methods.

a. Use the fire triangle to explain what the firefighters are trying to do in each picture

below.

i) Throwing water on the fire:

_______________________________________________

____________________________________________ (1)

ii) Clearing the ground close to the fire:

_______________________________________________

____________________________________________ (1)

iii) Throwing sand on the fire:

_______________________________________________

____________________________________________ (1)

b. Look at this picture. Explain why you should never

keep a spray can with this symbol close to a fire.

_______________________________________

(1)

c. The pictures below are two other hazard symbols. What do these symbols mean?

i) ii)

_______________________ ______________________ (2)

(TOTAL: 6 marks)

Integrated Science – Year 7 – 2019 Page 3 of 12

3. Sarah wanted to carry out an experiment. She wanted to dissolve 50g of sugar in

100ml of hot water. She set up the apparatus as shown in the diagram.

c.

d. Write down one safety precaution Sarah should keep in mind.

____________________________________________________________(1)

(TOTAL: 8 marks)

4. Use words from the box below to complete these sentences about

the process of fossilisation.

a. A fossil is the preserved remains of a dead plant or ___________________. The

process by which a fossil is formed is called fossilisation.

b. It is very rare for living things to become ____________________. Usually after

most animals die, their bodies just rot away. However, under certain special

conditions, a fossil can form.

c. After an animal dies, the soft parts of its body ____________________ leaving

the hard parts, like the ____________________ behind. This becomes buried by

small particles of rock called sediment.

skeleton animal decompose fossilised

a. In the boxes provided, label the apparatus. (4)

b. List two measuring apparatus not shown in the

diagram that she will be using.

i) _______________________________

ii) _______________________________

(2)

c. Describe one way in which she can make the

sugar dissolve faster.

__________________________________ (1)

(TOTAL: 4 marks)

Water

Page 4 of 12 Integrated Science – Year 7 – 2019

5. The diagram below shows a food chain.

a. Explain what the arrows in the food chain show.

________________________________________________________________ (1)

b. Name the producer in the food chain.__________________________________ (1)

c. Name the ultimate source of energy that drives the food chain. _____________ (1)

d. The diagram below shows a food web.

i) Name three consumers in the food web.

_____________________________________________________________ (3)

ii) Construct a food chain from this food web made up of five organisms.

_____________________________________________________________ (2)

iii) Explain what would happen to the number of diving beetles if all the frogs suddenly

die. ___________________________________________________________(1)

(TOTAL: 9 marks)

Integrated Science – Year 7 – 2019 Page 5 of 12

6. Organisms have various adaptations to help them live in their habitats.

a. Give the meaning of the word ‘adaptation’.

______________________________________________________________(1)

b. The pictures below show two organisms and their adaptations. Complete the tables

below to explain the adaptations shown by the polar bear and the cactus.

i) Polar bear

Polar Bear

Adaptation Reason for adaptation

1. Small ears

2. White fur

3. Wide feet

(3) ii) Cactus

Cactus

Adaptation Reason for adaptation

4. Needle-like leaves

5. Fleshy stem

6. Long, deep roots

(3)

(TOTAL: 7 marks)

1. Small ears

2. White fur

3. Wide feet

4. Needle-like leaves

5. Fleshy stem

6. Long, deep roots

Page 6 of 12 Integrated Science – Year 7 – 2019

7. The diagram below shows the water cycle.

a. Name the change of state labelled A and B in the diagram.

A: ________________________ B: _______________________ (2)

b. Water in the lake is in liquid state. State two properties of liquids:

Property 1:____________________________________________________

Property 2: __________________________________________________(2)

c. Give two reasons why water in liquid state is important for life:

Reason 1:______________________________________________________

Reason 2: ___________________________________________________(2)

d. These are everyday situations. Write down the change of state that is taking place.

i) Hanging washed clothes to dry

ii) Preparing ice-cubes for a party

iii) Water droplets on the mirror after a hot shower

(3)

(TOTAL: 9 marks)

Rainfall

Water

Change of State

Integrated Science – Year 7 – 2019 Page 7 of 12

8. Shirley makes a circuit using a bulb, cell and wire.

a. Complete the diagram below by drawing the missing component so that the bulb

lights. (1)

b. Name the component that she could add to her circuit so that she can light the bulb

on and off. _________________________ (1)

c. In the box provided, draw the symbol of this component.

(1)

d. Shirley wants to test which objects conduct electricity. For this purpose she uses the

circuit below:

i) She places objects between the clips. Explain how she will know if the object

conducts electricity._________________________________________________

(1)

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ii) The table below shows which objects were placed between the clips. Tick ()

three objects which conduct electricity.

Object Conducts electricity

Wooden ruler

Steel scissors

Sheet of paper

Silver chain

Brass pin

(3)

iii) Some materials do not allow electricity to pass through them. These materials

are called _________________________. (1)

e. Light bulbs can be connected in series or in parallel. State whether the circuits A to

D below show a series circuit or a parallel circuit.

Circuit A _____________________ Circuit B _____________________

Circuit C _____________________ Circuit D____________________(4)

f. List two advantages of using parallel circuits instead of series circuits.

i)__________________________________________________________________

ii)_______________________________________________________________(2)

(TOTAL: 14 marks)

Circuit A Circuit B

Circuit C Circuit D

Integrated Science – Year 7 – 2019 Page 9 of 12

9. Holly placed a 1cm piece of magnesium ribbon into

a test tube containing 5 cm3 of an acid labelled X.

Bubbles were observed showing that a gas is produced.. The magnesium ribbon slowly

The magnesium ribbon slowly disappeared.

a. Write the sentence which shows that a chemical reaction took place.

___________________________________________________________ (1)

b. Name the gas produced in this reaction. ________________ (1)

c. State how you can test for this gas.

_______________________________________________________________ (1)

d. Give two properties of the gas produced.

Property 1: ________________________________________________________

Property 2: ______________________________________________________(2)

e. Holly’s science teacher provided her with another test tube containing 5cm3 of a

different acid labelled Y. She asked Holly to plan an investigation to find out which

is the stonger acid, X or Y. Holly decided to measure the time taken for each piece

of magnesium ribbon to react completely and disappear in both acid X and acid Y.

i) Name the measuring instrument needed.________________________ (1)

Holly obtained the

following results.

ii) This experiment shows that acid ___________ is the strongest acid because

______________________________________________________________ (2)

f. Give two ways in which Holly could ensure that she has carried out a fair test.

i)_______________________________________________________________

ii)____________________________________________________________ (2)

(Total: 10 marks)

Acid Time taken for magnesium to disappear.

X 42 sec

Y 130 sec

magnesium ribbon

Page 10 of 12 Integrated Science – Year 7 – 2019

10. The following diagram shows the light microscope.

a. Use some words from the box below to fill in the missing labels.

(3)

b. The student uses the objective lens labelled x 4. Calculate the total magnification.

______________________________________________________________ (1)

c. The picture below shows the slide being observed under the microscope.

i) State if the slide shows an animal or plant tissue. _______________________

(1)

clamp, light, arm, stage, focusing knob

Eye piece lens

Objective lens

Chloroplast

Cell wall

Cell membrane

Nucleus Large, central

vacuole

Integrated Science – Year 7 – 2019 Page 11 of 12

ii) Name the three structures that are present in a plant cell, but are absent in an

animal cell.

________________________________________________________________

(3)

iii) Choose two of the labels shown in the diagram and describe their function.

Label: ______________________________

Function: _______________________________________________________

Label: ______________________________

Function: _______________________________________________________

(2)

(TOTAL: 10 marks)

11. The diagram shows a typical flowering plant.

a. Match the labelled parts with their function

by writing the correct letter in the table below.

A

B

C

D

E

Label Description

Protects the seeds as they develop.

Absorbs water and anchors the plant.

It is the reproductive organ of the plant.

Holds the plant upright.

Performs photosynthesis.

(5)

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b. The following diagram shows the different parts of a flower.

i) On the diagram, label the sepal and the petal. (2)

ii) This paragraph describes

reproduction in flowering plants. Fill in

the missing words:

As the bee moves down a flower, it rubs

against the _____________ and picks

up _____________. This is the

_____________ reproductive cell of the

flower. When the bee leaves the flower,

the pollen falls on the sticky

_____________.

The pollen moves down the pollen tube and the _____________ gets fertilized and

forms the _____________. (6)

(Total: 13 marks)

12. Match the following words to the correct description:

The body changes from that of a child to that of an adult.

It controls the functions of the cell.

This prepares the female body for a possible pregnancy.

When the sperm cell meets the egg cell.

Nutrients and oxygen pass from the mother to the foetus.

(5)

(TOTAL: 5 marks)

End of paper. Check your work again.

Stamen

Stigma

Ovule

fertilisation, menstrual cycle, puberty, nucleus, placenta