Primary General Science Glossary

This is a general primary science glossary. For class specific glossaries please go to the specific subjects

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Reflection is when light hits the surface of an object and then that light travels to our eyes so we can see. Mirrors catch light rays in front of them and throw it back in the direction it came from.

Reversible change

A reversible change is a change that can be changed back again. Melting and heating are examples of reversible changes.