Science

4. Explore radioactivity

Mission Objectives

Describe what's meant by radioactive decay

Describe the four types of nuclear radiation

Rocket Words Quiz

See if you know all the meanings of the rocket words

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Word Search Game

Find all the rocket words in the grid

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Lesson Plan

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KS4-21-04 Lesson Slides KS4-21-04 Mission Assignment KS4-21-04 Handout KP KS4-21-04 PDF Handout KS4-21-04-Teacher Answers

Keywords

Words and meanings to learn

radiation

energy emitted from a source, carried by a particle or wave

radioactive decay

when an unstable atomic nucleus emits radiation

alpha particle

a positively charged particle that consists of two protons and two neutrons emitted by the radioactive decay of some nuclei

beta particle

a high energy negatively charged electron emitted by the radioactive decay of some nuclei

gamma ray

a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei

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United Kingdom National Nuclear Laboratory

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Required Resources

Resources: Class presentation, handout, a Geiger Muller Tube and radioactive sources to show count rate (optional- if carried out a full risk assessment should be carried out to ensure safe storage and handling).

Handout: Explore the history of the discovery of radiation in terms of Becquerel and Curie. Describe the 3 main types of radiation. Use true and false questions to discuss the background and ionising radiation. Discuss and clarify any misconceptions.

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