chemistry

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Across
  1. 2. Substance that is used at the start of a chemical reaction.
  2. 4. A word that describes a substance that is not acidic.
  3. 6. The substance that is made at the end of a chemical reaction.
  4. 7. A clear liquid that is H₂O and needed for life.
Down
  1. 1. The science that studies matter and how it changes.
  2. 2. When substances change into new substances.
  3. 3. A substance that can taste sour and react with metals.
  4. 5. An old practice that tried to turn metals into gold and led to modern chemistry.