2000 science paper b - qwizdom ppt

2000 Science Paper B2000 Science Paper BInput your name and press send.Input your name and press send.

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2000

SCIENCE PAPER B

An interactive Qwizdom lesson

2000 Science Paper B Q1

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The Skeleton(a) This is a drawing of a human skeleton.

Name the parts of the skeleton.

This is the…


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This is the…

(Clue 5 letters)


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These are the…

(Clue 4 letters)

(b) Describe TWO different ways that the skeleton is important to the human body.


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The Skeleton(c) The boxes below show the length of one person's hand at different stages of the life cycle.

5 cm is the length of…A. ChildB. AdultC. BabyD. teenager

5 cm

20 cm

15 cm

12 cm

child

adult

baby

teenager


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5 cm

20 cm

15 cm

12 cm

child

adult

baby

teenager


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Heating and Cooling(a) Some children want to see how food changes when it is heated and cooled.They have five different kinds of food.

bread crisp

m argarine

egg

chocolateThey use a small candle to heat each kind of food, then leave each to cool.

peg

candle

They use a peg to hold the food over the lighted candle.Why is it safer to hold the food with a peg instead

of with the hand?


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bread crisp

m argarine

egg

chocolatepeg

candle

(b) To be safe, they put sand around the candle to hold it upright.Give another reason why sand is a good material to have around a lighted candle.


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bread crisp

m argarine

egg

chocolate

(c) When margarine is heated, it melts and becomes a liquid.When it cools, it goes back to a solid.This is a reversible change.Complete this table by using the Yes & No keys.

Food Change when heated Is the changereversible?

Is this a reversible change?


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Magnets(a) Some children have questions about magnets.They write their questions on pieces of paper and pin them to a board.

A

D E

B C

Are allmagnet s t he

same s t rengt h?

W hy ar e magnet sso i nterest i ng?

W i l l sc i en ti sts i nventnew magn ets

W hy ar e t heends of bar

magnet s calledpoles?

C an m a g ne tsa ttrac t

th ro u g h p a pe r?

Which TWO questions can be answered by testing with magnets in the classroom?

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The children have some new and old 1p coins.The new and old coins are made from different metals.Chose ONE answer to show why a magnet does not attract the old coins.

They are rusty A They are not made

of a magnetic metal BThey are dirty C They repel the

magnet D


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The children want to find out how many new coins they can pick up at one time.They try with one magnet, then with two magnets together and then with three.

magnet The bar chart below shows their results.

Draw another bar on the chart to show how many coins you expect four magnets together to pick up.

12

10

8

6

4

2

0one m agnet tw o m agne ts

toge the rthree m agnets

togethe rfour m agnets

togethe r

Bar chart show ing num ber o f co ins attracted

Numberof 1pcoins

attracted

Number of magnets


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Living Things(a) A computer controls these floor turtles.

Which organ inside a human body controls our activities? It is the ……….(Clue 5 letters one word).


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Living Things(b) Humans need to take in oxygen from the air so that they can live.Complete this sentence to say what else humans take in, so that they can live.Humans need to take in oxygen and take in ............................................

so that they can live.


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(c) Some children talk about their floor turtles.All of their sentences are true.They know that a floor turtle is not a living thing.Which sentences show that a floor turtle is not a living thing?Chose FOUR statements.

A floor tu rtledoes no tneed to feed .

A floor turtlecan fo llowinstructions.

A floo r turtlecannotreproduce .

A floor tu rtlecan repea tth ings againand again.

A floor tu rtlealw aysstays thesam e s ize .

A floo r turtle needse lectric ityto m akeit w ork.

A B C

D E F


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Space(a) The diagram shows how the Earth moves.

Sun

E arth

(i) How many complete days does it take the Earth to orbit the Sun?


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Sun

E arth

(i) It takes the Earth 365 days to orbit the Sun?

(ii) How many hours does it take for the Earth to spin once on its axis?


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Sun

E arth

Which diagram shows the correct shape of the Moon?

A B C D E


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Space(c) On March 2nd 1999, there was a full moon.

When the Moon orbited the Earth again, there was another full moon.

Calendar: March 1999

1 2full moon

3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

What would be the date of the next full moon?

(Clue – even number).


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Breathing(a) Nick breathes onto a mirror.

It becomes misty.

m irror

Choose one reason that helps to explain why the mirror becomes misty when he breathes on it.

A. The mirror is hotter than his breath.B. The mirror is colder than his breath.C. The mirror is the same temperature as his breath.D. The mirror is dry.


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Breathing(a) Nick breathes onto a mirror.

It becomes misty.

m irror

(c) After a few moments, the mist has gone.Nick has not wiped the mirror.What has happened to the mist to make the mirror look clear again?

(b) Name the process that makes the mist appear on the mirror.


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Forces(a) Sarah is exploring forces.She uses a forcemeter to lift or pull several objects.

She records her findings in a table.Sarah has not written the name of the units in her table.What is the name of the units used to measure force.(Clue 7 letters).

Force neededto make it start to move

Activity

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

Pulling a door open 3

Lifting a pencil case 1

Lifting a bucket of sand

5

Pulling a box across the floor

2


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ForcesSarah is exploring forces.She uses a forcemeter to lift or pull several objects.

Force neededto make it start to move

Activity

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

Pulling a door open 3

Lifting a pencil case 1

Lifting a bucket of sand

5

Pulling a box across the floor

2

(b) Which of the objects was easiest to move?

A. Door

B. Pencil case

C. Bucket

D. Box


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(c) The forcemeter is pulling the bucket up.What is the name of the force pulling the bucket down?


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(d) Sarah tries pulling the box across different kinds of floors.

Sarah finds it harder to pull the box on the carpet than on the wooden floor.Name the force that increases when Sarah pulls the box on the carpet.


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Looking at Plants(a) Which part of the plant produces pollen?

large red petal

stamen

stigma

flower bud

seed head

A

E

B

C

D

(b) Which information about this plant suggests that it is pollinated by insects?

(c) After the insects pollinate this plant, it develops seeds.The seeds are scattered by the wind.Write ONE different way that seeds from other plants are dispersed.


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Looking at Plants(d) Look carefully at this key for some flowering plants.

Yes

Yes Yes

Yes

N o

N o

N o

N o

D oes the p lan t have ye llow peta ls?

D oes it have w ide,rounded petals?

D oes it have asm ooth stem ?

Welshpoppy

commonpoppy

greatercelandine

D oes it have asm ooth seed

head?

smooth-headedpoppy

rough-headedpoppy

(i) What is the name of the plant in the picture?

A. Welsh poppy

B. Greater celandine

C. Smooth-headed poppy

D. Rough-headed poppy

E. Common poppy


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Looking at Plants(d) (ii) What colour petals does a greater celandine have?

Yes

Yes Yes

Yes

N o

N o

N o

N o

D oes the p lan t have ye llow peta ls?

D oes it have w ide,rounded petals?

D oes it have asm ooth stem ?

Welshpoppy

commonpoppy

greatercelandine

D oes it have asm ooth seed

head?

smooth-headedpoppy

rough-headedpoppy


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Electricity(a) Naomi's torch is not working.The cells (batteries) inside the torch are like this:

bulb switch metal strip cell

Naomi puts the cells back in a different way and the torch works.

Write + and – in the correct place in each cell below to show how Naomi puts them back.

(b) Inside the torch, a metal strip connects the cells and bulb.

Describe ONE property of metal that makes it a good material to connect the cells and bulb.


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Electricity(c) Draw a circuit diagram of Naomi's torch with the cells put in correctly.Use only the following symbols:

(2 marks)

bulb switch metal strip cell

cell

bulb

switch


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DissolvingSue has three different types of sugar.

She has:

large grain sugar

medium grain sugar

small grain sugar.

Sugar A: large grains

Sugar B: medium grains Sugar C: small grains

Sue measures how long it takes for 10g of each type of sugar to dissolve in 50cm cubed of water.She keeps the amount of stirring the same each time.


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Dissolving

Sue measures how long it takes for 10g of each type of sugar to dissolve in 50cm cubed of water.She keeps the amount of stirring the same each time.

Type of sugar Time taken for sugar to dissolve atroom temperature (seconds)


360 365 370

Sugar B: medium grains

190 215 200

Sugar C: small grains

160 165 161

Which type of sugar dissolved fastest?A,B or C?


End of paper.

Dissolving

(b) Sue's test was fair.She did her test more than once.Explain why Sue did the test more than once.

Type of sugar Time taken for sugar to dissolve atroom temperature (seconds)


360 365 370

Sugar B: medium grains

190 215 200

Sugar C: small grains

160 165 161

(c) Use the table to say how the size of the sugar grains affects the time it takes for the sugar to dissolve.

(2 marks)

2000 science paper b - qwizdom ppt

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