Saturday, 16 May 2026, 8:03 PM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Science Terminology for 11-13 Yr Olds --- (Jon Witts)
R
Ray diagramdiagram that shows which way light rays travel
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RDAsuggested amount of each nutrient which is needed daily to stay healthy.
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Reactantssubstances that react together during a chemical change
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Red blood cellscells in the blood which carry oxygen around the body
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Reflected raylight ray that bounces off a surface
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Reflectslight bounces off a surface
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Refractionbending of light when it moves from one material to another of different density
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Repel
force pushing something away
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resistantwhen bacteria are not affected by antibiotics
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Retinalight sensitive surface at the back of the eye
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