339GCSE Additional Science Copymaster File© Edexcel Limited 2007

Pages Learning outcome At the start

After I have studied

After I have revised

250–251 H explain what background radiation is 1 2 3 1 2 3 1 2 3

H describe how radiation from radon gas varies across the UK

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H explain that some unstable atoms emit radiation 1 2 3 1 2 3 1 2 3

252–253 describe how household smoke alarms use radioactivity 1 2 3 1 2 3 1 2 3

describe the three different types of radiation: alpha, beta and gamma

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explain that different types of radiation have different abilities to penetrate and ionise

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H explain how unstable nuclei of atoms can emit radiation 1 2 3 1 2 3 1 2 3

254–255 compare the ability of alpha, beta and gamma radiations to penetrate and ionise

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256–257 explain the sources and properties of X-rays and gamma rays 1 2 3 1 2 3 1 2 3

describe how radioactivity is used in hospitals to find and treat illnesses

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explain how equipment can be sterilised with radioactivity 1 2 3 1 2 3 1 2 3

explain how radioactivity is used to treat food so it keeps longer

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258–259 describe the structure of atoms in terms of protons, neutrons and electrons

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describe the nuclei of different atoms in the form mpX 1 2 3 1 2 3 1 2 3

H explain the existence of isotopes using atomic number and mass number

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260–261 describe how radioactivity decreases over time 1 2 3 1 2 3 1 2 3

explain the term half-life 1 2 3 1 2 3 1 2 3

use radioactive decay graphs to calculate half-lives 1 2 3 1 2 3 1 2 3

compare half-life graphs created on paper to graphs from a computer

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262–263 explain how scientists draw conclusions from techniques like radioactive dating

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recognise that there are often some uncertainties in these conclusions

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P2.11 0

Putting radiation to use

Name Class Date

Target sheet

1 = I don’t know this 2 = I’m not sure 3 = I know this

Sheet 1 of 2

340 GCSE Additional Science Copymaster File © Edexcel Limited 2007

Putting radiation to use

P2.11 0

Pages Learning outcome At the start

After I have studied

After I have revised

264–265 explain that scientific ideas develop over time 1 2 3 1 2 3 1 2 3

discuss some of the risks associated with radioactive sources 1 2 3 1 2 3 1 2 3

describe the dangers of ionising radiation and the possible damage it can cause

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discuss the precautions that must be taken when handling radioactive sources

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266–267 H describe where natural background radiation comes from 1 2 3 1 2 3 1 2 3

H describe how background radiation from radon gas varies across the UK

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268–269 H describe the origin of the background radiation in space 1 2 3 1 2 3 1 2 3

H explain how the Earth’s atmosphere and magnetic field protect us from radiation from space

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Target sheet

1 = I don’t know this 2 = I’m not sure 3 = I know this

Sheet 2 of 2