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Types of change
Read this page to have an introduction to reversible and irreversible changes. There is also a quiz to try and a game to play.

Reversible and irreversible changes
Try to dissolve various substances. You can also experiment with filtration and evaporation. Follow the instructions above the picture. There is a quiz afterwards to test your knowledge.

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 reversible or irreversible
 temporary or permanent
 chemical or physical
 heat and burning
 making new materials
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