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IB19 10_0846_02/3RP © UCLES 2019 [Turn over

Cambridge Assessment International Education Cambridge Primary Checkpoint

SCIENCE 0846/02

Paper 2 October 2019

45 minutes

Candidates answer on the Question Paper.

Additional Materials: Pen Calculator Pencil Ruler

READ THESE INSTRUCTIONS FIRST Write your centre number, candidate number and name in the spaces at the top of this page. Write in dark blue or black pen. DO NOT WRITE IN ANY BARCODES. Answer all questions. The number of marks is given in brackets [ ] at the end of each question or part question. You should show all your working in the booklet. The total number of marks for this paper is 50.

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© UCLES 2019 0846/02/O/N/19

1 (a) Chen writes some sentences about forces. Only one sentence is correct. Tick () the correct sentence.

Force is also called mass.

Force is measured in kg.

Force is measured in m.

Forces do not stop objects moving.

Forces have direction.

[1]

(b) Chen goes skateboarding.

wheelsground

There is friction between the ground and the wheels. Describe how he can increase the friction between the ground and the

wheels.

[1]

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2 Electrical cables contain wires.

A

BC

(a) A and B are made of plastic. Why are they made of plastic?

[1] (b) C is a wire. Write down the name of the material used to make C.

[1]

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3 Here are some properties of four substances.

substance Does it rust? Does it

dissolve in water?

Is it poisonous?

Is it strong?

A yes no no yes

B no no yes yes

C no no no yes

D no yes no no

(a) Buckets are used to carry water.

Which material could not be used to make a bucket? Choose from A, B, C or D.

Explain your answer.

[2] (b) Substance A is used to make cars. Explain why. Use information from the table.

[1]

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4 A mirror ball is shiny. It is made of many small mirrors.

Complete the sentences.

Light hits the surface of the mirror ball.

The light is then ·

The light changes ·

We see the light because it enters our ·

[3]

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5 Some animals have internal skeletons. Some animals do not have internal skeletons. Look at the pictures of different animals.

fish

bat

snake

locust worm

snail

Complete the table to sort them into groups. One has been done for you.

have an internal skeleton do not have an internal skeleton

locust

[2]

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6 Pierre is sorting metals in a recycling yard. He is using a magnet to help him. Which objects will be attracted towards the magnet? Circle the correct answers.

brass button

copper tube

gold ring

iron bath

lead pipe

silver coin

steel wire

zinc foil [2]

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7 Some plants have flowers. (a) Look at the picture of the flower. The flower has male parts and female parts.

Label a male part of the flower with the letter M. Label a female part of the flower with the letter F.

[2] (b) Complete the sentences.

The male organ of the flower is called .

The female organ of the flower is called .

[2]

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8 The table shows the properties of some substances.

substance state at room temperature

colour soluble in water

chalk solid white no

copper sulfate solid blue yes

gasoline liquid colourless no

iron sulfate solid green yes

magnesium sulfate solid white yes

(a) Which substances are insoluble in water?

[1]

(b) Lily wants to separate a mixture of copper sulfate and iron sulfate.

She adds water to the mixture and stirs it thoroughly. She then filters this mixture. Explain why this mixture is not separated.

[1]

(c) Lily mixes gasoline and water. Suggest what she sees.

[1]

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9 Mia and Safia are carrying out an investigation. They use a mass attached to string.

mass

Mia

string

Safia

distance

Before Mia starts the investigation she says

‘If I pull the mass further towards me it will take a longer time to swing to Safia.’

(a) What type of statement is this? Circle the correct answer. conclusion data evidence prediction results

[1]

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(b) What measuring apparatus will they need to test this? Tick () the correct two answers.

forcemeter

measuring cylinder

ruler

1

2

balance

stop clock

thermometer

10 20 30 40 50 60 70 80 90

[2]

(c) Mia and Safia want the investigation to be a fair test.

Write down one factor they keep the same.

[1]

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10 A key is used to identify different butterflies. Use the key to find out the name of butterfly A and the name of butterfly B.

A B 1. Is the butterfly one colour? Yes go to question 2 No go to question 3 2. Is the butterfly small and white? Yes Cabbage white No Blue morpho 3. Do the wings have dark lines on them and have white areas on the top wings? Yes Monarch butterfly No go to question 4 4. Are the bottom wings smooth along the edge? Yes Indian leaf butterfly No Swallowtail butterfly

Butterfly A is .

Butterfly B is . [2]

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11 Jamila dissolves salt in water to make salt water. (a) The water in Jamila’s experiment is a solvent. What is the meaning of the word solvent?

[1] (b) Salt is a soluble substance. What is the meaning of the word soluble?

[1] (c) Salt water is an example of a solution. What is the meaning of the word solution?

[1]

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12 Chen finds information about different planets. He writes down the time it takes for each planet to spin once.

planet time in Earth

hours

A 24

B 10

C 25

D 1408

E 5832

(a) Which planet takes the least number of hours to spin once?

[1] (b) One of the planets is Earth. Which planet is Earth? Circle the correct answer. A B C D E [1] (c) How many planets take longer to spin once than planet C? Circle the correct answer. 0 1 2 3 4 5 [1]

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(d) Look at the picture of the Earth.

X Y

Part of the Earth is labelled X. Part of the Earth is labelled Y. Describe what it is like at part X and Y.

At X it is .

At Y it is .

[1]

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13 The picture shows a poppy plant.

seeds

(a) The picture shows seeds being dispersed. What type of seed dispersal does the poppy plant use?

Circle one correct answer.

animal dispersal by eating

animal dispersal by hooking onto fur

self-dispersal by explosion

water dispersal

[1]

(b) The seed is dry. This helps it to be dispersed. Write down one other property of the seed that helps it to be dispersed.

[1]

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14 Oliver makes a table of the body temperature of living animals.

animal body temperature

in C

baboon 38.0

chicken 40.0

human 37.0

mouse 36.5

whale 36.0

Oliver says

‘The biggest animals have the highest body temperature.’

He is not correct. Use the information in the table to explain why he is not correct.

[2]

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15 Safia investigates friction. She lets a car roll down a slope.

She measures the time it takes for the car to reach the floor.

car

booksslope

floor

Safia changes the material on the slope. Here are her results.

material

time in seconds

plastic 2.2

wood 3.1

paper 3.0

card 2.9

wool 3.7

Complete the sentences about her results.

The material that made the car move the slowest is .

This is because this material .

[2]

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16 This is a question about food chains. (a) Complete the sentences.

Food chains start with .

The energy for food chains comes from

.

[2] (b) Look at the information.

foxes eat rabbits rabbits eat lettuce wolves eat foxes

Write a food chain using the information.

[2]

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17 Jamila lives near to the sea. She collects some sea water and measures the volume of the sea water.

Jamila pours the sea water into a dish.

She leaves the dish in the Sun until the dish only contains a white solid.

She measures the mass of the white solid.

Jamila repeats the experiment using different volumes of sea water. (a) Which piece of equipment does Jamila use to measure the mass of the white

solid?

[1] (b) A white solid appears after leaving the dish of sea water in the Sun. Explain why.

[2]

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(c) Here is a graph of Jamila’s results.

00

10 20 30 40 50 60

2

4

6mass of white solid

in g

volume of sea water in cm3

8

10

12

What is the mass of white solid in 25 cm3 of sea water?

g [1]

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18 Mike makes a bell using a pot and a mallet.

potmallet

He hits the pot with the mallet. The bell makes a quiet sound. (a) Describe one way he can increase the volume of sound made by the bell.

[1] (b) Mike wants to measure the volume of the sound. Which instrument measures the volume of sound? Circle the correct answer.

loud level meter

musical level meter

pitch level meter

sound level meter

volume level meter [1]

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Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. © UCLES 2019 0846/02/O/N/19

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