Chemistry Crossword

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Across
  1. 1. A type of bond where electrons are shared between atoms
  2. 3. The SI unit of electric current (6 letters)
  3. 5. The process of a liquid turning into a gas (11 letters)
  4. 6. The process by which plants convert sunlight into energy (9 letters)
  5. 8. The smallest unit of matter that retains the properties of an element (4 letters)
Down
  1. 1. A gas that turns limewater cloudy (6 letters)
  2. 2. A substance that speeds up a chemical reaction without being consumed (8 letters)
  3. 4. A type of reaction where heat is released (10 letters)
  4. 7. A subatomic particle with a negative charge (8 letters)