ELI5: Explain Like I'm 5

Chemical test

A chemical test is when we mix two things together to see what will happen. We might do this to test if something is really what we think it is. For example, if you put a drop of water on a piece of white paper and it turns pink, that is a chemical test. We can do this to test all sorts of things, from what kind of metal something is to what color it should be.
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