Science Spark Crossword 2

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Across
  1. 3. an electrically charged atom that has gained or lost one or more electrons.
  2. 5. an imaginary line around which an object rotates.
  3. 6. a group of two or more atoms joined by chemical bonds.
  4. 7. a water-soluble compound that donates protons (H+ ions) to a base.
  5. 9. – a chemical reaction in which a single substance is broken down into two or more products.
  6. 11. neither acidic nor basic.
  7. 14. a reproduction or likeness of an object.
  8. 15. a substance that takes part in a chemical reaction.
Down
  1. 1. a chemical reaction in which a fuel burns in a gas, usually oxygen.
  2. 2. a chemical reaction in which two or more reactants form a single product.
  3. 4. a location’s distance north or south of the equator.
  4. 8. – the bending of a wave as it passes from one medium to another.
  5. 10. an element that is malleable and usually conducts heat and electricity well.
  6. 12. H2O
  7. 13. the number of chemical bonds an element is capable of forming.