The Law of Conservation of Mass

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Across
  1. 3. A substance made up of matter with a specific composition, like water or salt.
  2. 5. Anything that has mass and takes up space.
  3. 6. The lightest element and the first one on the periodic table.
  4. 8. Types of matter with a uniform makeup, such as elements or compounds.
  5. 9. The law that matter is not created or destroyed during a chemical reaction.
  6. 10. Two or more atoms bonded together, like H₂O or O₂.
Down
  1. 1. The starting materials in a chemical reaction.
  2. 2. The new substances formed after a chemical reaction takes place.
  3. 4. The smallest unit of an element that still has the properties of that element.
  4. 7. What happens to atoms during a chemical reaction—they change places but are not destroyed.