Science Test Revision - John Buchan School€¦ · Look at the picture of the flamingo. ... Explain why it is important to the life cycle of brine shrimps that the eggs do ... bird

John Buchan Middle School 1

John Buchan Middle School

Science Test Revision

6A Interdependence and Adaptation

48 min

46 marks

Name


Level 4

1. Brine shrimps and flamingoes

(a) A brine shrimp is a tiny living thing. It lives in lakes and eats algae (green plants).

Brine shrimp

Flamingoes eat brine shrimps. They filter the shrimps from the water. Look at the picture of the flamingo.

Describe one feature of the flamingo’s neck that helps the flamingo to feed.

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

(b) Write the food chain for the three living things described above.

1 mark


(c) The lakes dry up in hot weather and fill up again when it rains. When the lake is dry the adult brine shrimps die, but the eggs do not.

Explain why it is important to the life cycle of brine shrimps that the eggs do not die when the lake dries up.

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

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

2. Nature walk

(a) Some children draw a food chain about living things they see in the garden. There is a mistake in their food chain.

What is the mistake in their food chain?

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

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

(b) The children correct their food chain. They make a table showing if each animal in the food chain is a predator, prey or both.

Tick ONE box in each row of the table to show whether each animal in the food chain is a predator, prey or both.

Animal Predator Prey Both

caterpillar

bird

cat

2 marks


(c) Which word best describes the function of the cabbage in the food chain?

Tick ONE box.

fertiliser consumer

organism producer

41 mark

(d) The children make a table about some other animals they found.

Animal Where they

found it

Number

of legs

Number

of wings

mayfly near the pond 6 4

spider in the grass 8 0

female glow-worm in the grass 6 0

duck near the pond 2 2

They use their table to make a key.


(i) Use the table above to help you write in the missing question on the key below.

(ii) Write the name of each animal from the table in the correct box on the key below.

One has been done for you.

Yes No

Yes No

Yes No

Question:

Does it have six legs?

Question:

Does it have wings?

Question:

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

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

.............................. spider.............................. ..............................

2 marks


3. Brine shrimps

(a) Joanne is watching 5 brine shrimps in a container.

She has covered the container to make one half dark and one half light.

How many brine shrimps were in the dark after 30 seconds?

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

(b) Amy and Rebecca planned to investigate whether brine shrimps prefer to swim in the light or the dark.

Amy’s Plan Rebecca’s Plan

Step 1

Step 2

Step 3

Step 4

Put 1 shrimp in one dish.

Watch the dish for 5 minutes.

Record the amount of time the shrimp was

in the light.

Compare the amount of time the shrimp spent in

the light with the time spent in the dark.

Put 10 shrimps in one dish.

Watch the dish for 1 minute.

Count how many shrimps were in the light every 10

seconds.

Compare the number of shrimps seen in the light with the number out of

sight in the dark.


Look at Amy’s plan.

What measurements should Amy compare to decide whether shrimps prefer light or dark?

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

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

(c) Look at Rebecca’s plan.

How did Rebecca work out how many brine shrimps were in the dark each time she looked?

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

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

(d) Look at Amy’s and Rebecca’s plans.

(i) Which do you think is the better science plan?

Tick ONE box.

Amy’s

Rebecca’s

(ii) Explain why.

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

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

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


4. Butterfly garden

(a) This diagram shows the life cycle of a red admiral butterfly.

John wants to get rid of all the nettles in the school wildlife area. This will affect the red admiral butterfly.

Give TWO different reasons why nettle plants are important in the life cycle of the red admiral butterfly.

(i) ............................................................................................................ 1 mark

(ii) ............................................................................................................ 1 mark

(b) Some birds eat caterpillars.

Use the diagram to help you complete the food chain below.

.......................... ............................ bird.........

8 1 mark


5. Vegetable Patch

(a) Kami sees all of the things below while he is working in his vegetable patch.

Tick FIVE boxes to show which of these things are living.

2 marks


(b) Kami grows cabbages in his vegetable patch. Some of the cabbages are eaten by snails. Some of the snails are eaten by birds called thrushes.

Write a food chain to show this information.

Use arrows in your food chain.

.............................. .............................. .............................. 2 marks

(c) A cabbage has many leaves.

Tick ONE box to show why leaves are important to a cabbage plant.

The leaves...

attract insects.

anchor the plant in the ground.

collect pollen.

produce new material for growth.

1 mark

(d) Kami cuts a cabbage in half. The leaves on the outside of the cabbage are dark. The leaves on the inside are a pale yellow colour.

Which statement best explains why the leaves on the inside are paler?

Tick ONE box.

The leaves on the inside of the cabbage get...

less light. less water.

more minerals. more air.

1 mark


6. Animals in their environment

(a) Draw THREE lines to match each of these animals to the environment in which it lives.

1 mark

(b) Highland cows look different from other types of cow.

Look at the pictures of the cows.

How are Highland cows better protected against cold weather than Jersey cows?

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


(c) These animals live in different environments.

Complete the table below to describe ONE feature of a Polar Bear. Say how the feature helps the Polar Bear to live in its environment.

Animal Lives in... One feature that helps

the animal to live in

its environment

How the

feature helps

Monkey rainforest it has a tail to help it balance

Polar

Bear the Arctic

it has .......................

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

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

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

1 mark


Level 5

7. Periwinkles

(a) Periwinkles are animals with shells that live on rocks at the seashore.

Shell of periwinkle A Shell of periwinkle B

The shell of periwinkle A is smaller than the shell of periwinkle B.

Describe ONE other way the shell of periwinkle A is different from the shell of periwinkle B.

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

(b) Periwinkles do not have bones inside their bodies but they do have a shell. The shell does not help the periwinkle to move.

Describe ONE function of the shell.

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

(c) A scientist wants to find out if the area the periwinkles live in affects the size of their shells. He measures a sample of 20 periwinkle shells from two different areas of the seashore.

Why does he measures 20 periwinkle shells from each area instead of just one periwinkle?

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

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


(d) Explain why it is important to return the animals to the same place they were collected from.

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

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

(e) The scientist measures how much water is in a rockpool. After five hours the water level in the rockpool is lower. No waves splashed into the rockpool during this time. No water could leak out.

Rockpool Rockpool after 5 hours

Describe what happened to the water in the rockpool during the five hours.

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


8. Edward Jenner

(a) Edward Jenner was a doctor who lived a long time ago.

Jenner noticed that people who suffered from a disease called cowpox did not catch smallpox.

Smallpox is a disease that can kill people.

Picture of Edward Jenner from Senior Biology (1991),

King, R.J. and Sullivan, F.M. Pearson Education, Australia.

What do we call it when someone notices something important like this?

Tick ONE box.

an observation an effect

an investigation a measurement

1 mark

(b) Jenner carried out a test. He used cowpox to see if it could stop people catching smallpox. He carried out his test on several people.

Why did Jenner carry out his test on several people instead of on just one person?

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

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


(c) A micro-organism causes smallpox.

Why do scientists wear masks and gloves when they work with micro-organisms?

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

7 1 mark

(d) There are many types of micro-organism. Some can help to prevent or cure disease.

Describe ONE different way in which micro-organisms can be helpful.

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

(e) The diagrams below show how three different micro-organisms look under a microscope.

A B C


Use the key below to help you identify these micro-organisms.

Write your answers under the key.

Does it have a tail?

Does it have a nucleus?

Is it covered in hairs?

yes

yes yes

no

no no

Euglena Amoeba BacteriumBlue-green

algae

A is ................................................. B is .................................................

C is ................................................. 2 marks

9. Woodland survey

(a) Sam and Peter measure around the trunks of ten oak trees.

They measure five trees growing close together and five trees growing in open space. The trees are all the same age.

Here are their results.

sizes of treetrunks closetogether (cm)

sizes of treetrunks in openspace (cm)

101 318

67 190

80 320

32 400

96 350


The range of measurements for tree trunks growing close together was 32–101 cm.

What was the range of measurements for tree trunks growing in open space?

................................................ cm 1 mark

(b) Use the information in the tables. Compare the size of tree trunks growing close together with the size of tree trunks growing in open space.

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

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

(c) Trees need light to help them grow.

How do trees use light to help them grow?

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

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

(d) Name TWO other things that trees need to take in to help them grow.

Light and .......................................... and ............................................. 2 marks


(e) Peter finds lots of fungi under a tree.

Write true or false next to each sentence about fungi below.

One has been done for you.

Fungi are living things. ..............................true

Fungi can grow. ..............................

Fungi can reproduce. .............................. 1 mark

10. Hedgehogs


(a) Look at the picture.

Which part of the hedgehog’s body helps stop foxes from eating it?

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

(b) The bush makes food material in its leaves. The hedgehog’s food includes slugs.

The two sentences above describe the same life process. Which life process?

Tick ONE box.

growth movement

excretion nutrition

sensing none of these

8 1 mark


(c) The hedgehog gives birth to young. This shows that it reproduces.

Which of the following shows that the bush also reproduces?

Tick ONE box.

New leaves grow in spring.

Leaf buds open in spring.

Leaves fall in autumn.

Seeds are dispersed in autumn.

1 mark

(d) This graph shows how the mass of a female hedgehog changes in one year.

Graph showing change in mass of female hedgehog

900

800

700

600

500

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec

Time (months)

Mass(g)


Look at the graph. It shows that the hedgehog lost weight when she hibernated (slept) through the winter.

It also shows when she gave birth.

In which month does the graph show that the hedgehog gave birth?

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

Documents

Science Test Revision - John Buchan School€¦ · Look at the picture of the flamingo. ... Explain why it is important to the life cycle of brine shrimps that the eggs do ... bird