Chapter 2: Chemical Reactions

12345678910
Across
  1. 4. To look closely at something to find out the truth or gather evidence.
  2. 7. A group of atoms joined together in a specific way.
  3. 8. Observable characteristics used to identify a substance, like color or smell.
  4. 10. A reddish-brown substance formed when iron reacts with oxygen and water.
Down
  1. 1. The process where atoms rearrange to form new substances.
  2. 2. A unique type of matter that has the same properties throughout.
  3. 3. The ending materials that are created by a chemical reaction.
  4. 5. Tiny particles that make up all matter and cannot be created or destroyed.
  5. 6. To pull apart and change the arrangement of atoms.
  6. 9. The starting materials that enter a chemical reaction.