Year%8%Science% Revision%Pack% May/June2012%

Year 8 Science

Revision Pack

May/June 2012

This revision pack is designed to help you prepare for your science exam. By completing all the work you will be able to see where you have learned everything and where you need to do extra revision.

All the subjects in this pack have been studied in class and should be accessible to most students. Different tasks are set at a range of levels so you can get an idea what level you are capable of and where you need to work harder. Additional work is also available on SAM Learning online. I also recommend using BBC Bitesize to help you revise. Remember ? revision needs to be ACTIVE ? you should be doing something. Nobody learns well by just sitting down and reading, but nobody learns by just clicking away randomly on the computer. Keep paper handy so you can write down questions to ask your teacher. Quiz your friends about the revision work in school. Try to explain your ideas to your parents! What is most important is that you read the question carefully before you answer it sometimes you can say something true but get no marks if it doesn't answer the question! Good luck, B. Crossley, KS3 Co--ordinator, Science.

Task 1: Get the words right! (Levels 5?6)

Use straight lines or, alternatively, colour coding to match up the words with their correct meaning.

Word Pathogen

Meaning When the microbe/germ enters your body.

Incubation period

The signs of the illness.

Infection Symptom Toxin

A microbe that causes a disease.

Poisons that pathogens release into your body and cells. The period of time between becoming infected and showing symptoms.

Task 2: Dissolving (Levels 3?4)

solvent ? solution ? solute ? insoluble ? soluble ? dissolving solid ? liquid ? dissolved

Use the words in the box above to complete this paragraph.

When we put sugar into tea it disappears! We can taste it but we can't see it, we say it has _____________. For _____________ to take place we need a _____________, which is generally a liquid, and a _____________, which is generally a solid. If the _____________ particles will not dissolve in the liquid then we say it is _____________. If the solid particles do dissolve in the _____________ we say it is _____________. Once a solid has dissolved in a liquid we say we have a _____________.

Now use as many of the words as you can in a paragraph of your own to describe an everyday example of dissolving.

Task 3: How big and how far? (Levels 5?6)

Planet

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

Distance Length of from Sun year (Earth (million km) days)

69.7

88

109

225

152

365

249

687

816

4380

1510

10 768

3010

30 660

4540

60 225

Surface temp (?C)

Mass (? Earth's mass)

?185 430 0.06

480

0.82

?89 58 1

?110 0 0.11

?150

318

?170

95

?200

14.5

?210

17.2

Gravity (? Earth's gravity) 0.38 0.9 1 0.38 2.7 1.2 0.93 1.2

1 Plot a graph showing the distance of a planet from the Sun against its length of year. 2 What does your graph show?

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

3 Now plot a graph of distance from the Sun against temperature. What does this graph show?

.................................................................................................................................... .................................................................................................................................... 4 Can you explain these relationships?

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

Task 4: Adapted to survive! (Levels 3?6)

1 Look at the following three animals.

a

b

c

For each one, write down two ways in which it is adapted to be a predator. a .....................................................................................................................................

..................................................................................................................................... b .....................................................................................................................................

..................................................................................................................................... c .....................................................................................................................................

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

2 Choose one of these animals and describe what its adaptations are for: a Finding its food (its prey)

.................................................................................................................................... b Catching its food

.................................................................................................................................... c Killing its food

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

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

3 Here is a picture of wolf's skull. The wolf is a predator.

Complete the table below by writing down how the teeth help the wolf to be a predator.

Type of tooth Incisor

What the tooth does

Canine

Molar

Task 5: Match the elements and the symbols (Levels 3?4)

1 Use the Periodic Table to find the names of these elements.

a Cr bC cP d Ca eV

f Be gI h Hg iK j Ag

2 Now use the Periodic Table below to find the symbols for these elements.

a cobalt b titanium c magnesium d copper e aluminium

f oxygen g nitrogen h tungsten i gold j sodium

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