Unit 1

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Across
  1. 2. A type of physical change that changes a solid to a liquid
  2. 4. The letter or letters that stand for an element's name
  3. 7. The first element on the Periodic Table
  4. 9. This is a solid that is formed out of a liquid solution
  5. 10. Pure substance that cannot be broken down further
  6. 11. Evidence of a chemical change that smells
Down
  1. 1. Made up of two or more elements; can be broken down into a simpler substance
  2. 3. Tells the number of atoms of each element in a chemical formula
  3. 5. A type of physical change that involves blending substances together but they all maintain their own properties (trail mix)
  4. 6. The type of change that creates a new substance; cannot be undone
  5. 8. The process in which the reactants are converted into products (new substances)
  6. 9. The type of change that alters the physical properties of a substance without changing its identity