science choice board

12345678910
Across
  1. 4. to mix a solid completely into a liquid until it becomes part of the liquid and disappears
  2. 6. the basic building block of all matter in the universe.
  3. 9. a substance, usually a liquid that dissolves other materials to form a solution.
  4. 10. made up of parts or people that are all the same type or very similar.
Down
  1. 1. made up of parts that are different from each other.
  2. 2. a physical combination of two or more substances where each keeps its own chemical identity and properties.
  3. 3. a pure substance made of only one type of atom
  4. 5. a group of two or more atoms held together by chemical bonds.
  5. 7. anything that has mass and takes up space
  6. 8. a thing made by mixing or joining two or more parts, words, or elements.