John Buchan Middle School 1

John Buchan Middle School

Science Test Revision

5A Keeping Healthy

33 min

32 marks

John Buchan Middle School 2

Level 3

1. Balanced Diets

(a) A class carries out a survey to find out how often the children eat vegetables.

Tally chart to show how often the children eat vegetables

How often?

more than once a day

once a day

once a week

less than once a week

never

How often?

Use the tally chart. How many children eat vegetables more than once a day?

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(b) Eleven children gave the same answer as each other.

Use the tally chart to find out what answer these eleven children gave.

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(c) In a balanced diet, each food group has a special function in the body. Each food below is a good source of something the body needs.

Draw THREE lines below to match each food to its special function.

Food Function: Good source of...

carrots and oranges

chicken and eggs

bread and cakes

fuel for activity.

new material for growth.

vitamins for health.

1 mark

(d) Nasreen makes a poster to show how to stay healthy. Only some of the ideas on her poster are good.

Tick TWO boxes to show the best ideas on the poster below.

To stay healthy you should:

• eat lots of fried food.

• eat different kinds of food.

• smoke every day.

• exercise often.

1 mark

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2. Smoking and health

(a) Some children watch a video showing what happens when air passes through a lighted cigarette.

The video shows a scientist using this model.

The scientist squeezes the plastic bottle. This forces air out.

Then she lets go. This forces air back into the bottle, through the lighted cigarette.

She does this several times. The cotton wool becomes black and dirty.

What is taken into the bottle with the air and makes the cotton wool dirty?

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(b) What organ of the body does the cotton wool represent?

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(c) What harmful effects can cigarette smoking have on the body?

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3

3. The circulatory system

(a) Some children are learning about blood and how it flows around the human body.

Blood flows faster when the heart pumps faster.

Which TWO of the following make the heart pump fastest?

Tick TWO boxes.

swimming resting

stretching running

1 mark

(b) What do we measure to find out how fast the heart is pumping?

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(c) What is the heart made from?

Tick ONE box.

muscle blood

bone skin

4 1 mark

(d) The heart pumps the blood.

Which diagram best shows the path of the blood as it circulates?

Tick ONE box.

Lungs Lungs

Heart Heart

Body Body

Lungs Lungs

Heart Heart

Body Body

1 mark

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(e) When the heart pumps the blood faster, we also breathe faster.

Complete this sentence.

We breathe faster because the body needs to

take more ..................................................... into the lungs. 1 mark

Level 4

4. Medicines and drugs

(a) Medicine bottles used to be made of glass. Now they are often made of plastic.

Why is plastic a better material to use for a medicine bottle?

.......................................................................................................................

....................................................................................................................... 1 mark

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(b) Some children had these ideas about medicines. Some of their ideas are not true.

Write true or false under each idea about medicines.

1 mark

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5. Playing Football

(a) Some children are playing football. They take their pulse rates before and after the game.

What does pulse rate measure?

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(b) The children’s pulse rates increased during the game.

Explain why their pulse rates increased as they ran.

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(c) The children sit down and rest after the game.

Predict what will happen to their pulse rates over the next 10 minutes.

The children’s pulse rates will .............................................................. 1 mark

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6. Space station

(a) Class 6F has been watching a programme about the International Space Station.

Astronauts live in the space station for many months. Each day they spend two hours on exercise machines.

(This photograph has been reproduced by kind permission of NASA.)

Why do astronauts need to exercise while they are in the space station?

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(b) The astronauts are not allowed to eat bread or crackers because the crumbs float around the space station. On Earth, crumbs fall down.

Why do crumbs fall down to the ground on Earth?

Write about a force in your answer.

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(c) Food that astronauts take into space has been dried to remove air and water. This stops micro-organisms growing on the food.

Write true or false next to each statement about their food.

Dried food is better than fresh food to take into space because it... True or false?

weighs more. ......................

decays more slowly. ...................... 1 mark

(d) The astronauts investigate plants in the space station. The plants grow in a special jelly instead of soil. The jelly contains the things plants need to grow.

What things from the jelly do the plants need to take in through the roots?

Tick ONE box.

water and light nutrient and air

water and nutrients air and water

1 mark

(e) The roots of plants take in some things the plants need to grow.

Describe another function of the roots.

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7. The heart

(a) Denise uses a stethoscope. She listens to Joe’s heartbeat before Joe exercises.

As soon as Joe stops exercising, Denise listens again. Joe’s heartbeat is louder.

Describe one other change in Joe’s heartbeat straight after exercise compared with before exercise.

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(b) Denise and Joe collect information from four adults. The table shows what they find out.

Adult Exercises regularly

Eats a balanced diet

Smokes regularly

Cleans teeth regularly

A

B

C

D

Which TWO adults are most likely to have healthy hearts?

Write A, B, C, or D.

...........................................……… and ...............…................…...............… 1 mark

John Buchan Middle School 13

Level 5

8. Bones

(a) A human skeleton is made up of bones.

Tick ONE box to show the main life process for which bones are important.

breathing nutrition

movement reproduction

1 mark

(b) Birds also have a skeleton. The diagrams below show a human bone and a bird bone cut in half.

Human bone Bird bone

The bird bone is hollow (filled with air) inside. This makes it easier for the bird to fly.

Why do hollow bones make it easier for birds to fly?

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(c) This bird eats only meat.

Meat is all it needs for its bones to stay strong.

If humans ate only meat, their bones would not stay strong.

Tick ONE box to show what is best for humans to eat to keep their bones strong.

all food without fat

only fruit and vegetables

Any food that tastes good a balanced diet

1 mark

(d) Describe a different way humans can keep their bones strong.

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9. Human body

(a) Meena makes this list to show the functions of different parts of the body.

Functions of different parts of the body:

1. takes in food

2. pumps blood

3. takes in oxygen

4. holds the body upright

5. controls the body

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(i) Which number on Meena’s list gives the main function of the brain?

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(ii) Which number on Meena's list gives the main function of the heart?

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(b) Some of our bones help to protect our organs.

Name the set of bones that helps to protect the heart and lungs.

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(c) Meena reads in a book that the human heart beats about 4300 times an hour at resting rate.

Meena says: 'I want to check this information, but I cannot measure my heartbeat for an hour.'

How can Meena find out quickly if her heart beats about 4300 times an hour?

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