Radioactive Substances

What is radioactivity? Explore the difference between alpha, beta and gamma radiation and how their different properties can make them useful.

Physics - Energy And Radioactivity - Learning Points.

Radioactivity is the nuclear decay of unstable elements.

Alpha and beta rays are particulate radiation that can be stopped by something thicker than paper.

Gamma rays are a type of electromagnetic radiation that is extremely penetrating.

Radiation has risks, but it can also be useful in medicine.
A Twig Curriculum Film.
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