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P and C changes
Question | Answer |
---|---|
From liquid to solid | Freezing point-the temperature at which a substance changes from a liquid to a solid |
From solid to liquid | Melting point -the temperature at which a substance changes from a solid to a liquid |
From gas to liquid | Condensation- the changing of a gas into a liquid due to cooling |
From liquid to gas | Boiling point- the temperature at which a substance changes from a liquid into a gas |
Chemical change | A change at the molecular level that results in the formation of a new substance Ex. Rust on metal, banana turning brown |
Physical change | The substance changes form but it's molecules remain the same Ex. Water freezing,glass breaking! |
Mixtures | Combinations of substances which keep their same properties Ex. Salad , trail mix , oatmeal with raisins |
solutions | Where one substance (solute) is dissolved into another. (Solvent) Ex. Kool-aid, coffe, tea! |