🔬 Science · Matter & Materials
Pure Substances & Mixtures
Distinguish between pure substances and mixtures, identify formulations as useful mixtures with precise compositions, and use melting and boiling points to test for purity
Typical age: 11–13 years
“If your child was checking whether a sample of water was pure, could they explain one test they could do — and say what result would tell them it was definitely pure versus a mixture?”
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