Chemical and Physical Properties

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Across
  1. 1. the ability of a substance to dissolve in a liquid and form a mixture.
  2. 4. a rapid chemical reaction between substances, typically with oxygen, producing heat and light
  3. 6. how easily a material can bend, stretch, or change shape without breaking.
  4. 8. how easily a substance can catch fire and burn
  5. 10. a thin, dull layer of corrosion that forms on the outer surface of a metal when it reacts chemically with gases in the air.
  6. 11. the odourless, colourless, and tasteless mixture of gases that makes up the Earth's atmosphere
  7. 12. a chemical compound made of two hydrogen atoms bonded to one oxygen atom, with the formula H2O
  8. 14. any substance that in water solution tastes sour,
  9. 15. the biological systems that humans and other animals use to gather information about the world around them and inside their bodies
Down
  1. 2. how light bounces off the surface of a mineral, rock, or crystal
  2. 3. the specific temperature at which a liquid changes into a gas or vapour
  3. 5. anything that has mass and takes up space.
  4. 7. a single, pure form of matter that has a fixed, uniform composition and specific properties throughout.
  5. 9. the exact temperature where a solid turns into a liquid as it absorbs heat
  6. 13. a process where one or more starting substances change into completely new substances with different properties