Physical and Chemical Changes

Edit Answers
123456789101112
Across
  1. 8. changes of _________ are examples of physical changes.
  2. 9. Carbon dioxide is an example of two substances that are chemically joined, we call this a _________.
  3. 10. This type of change cannot be reversed easily.
  4. 12. Production of heat can be a sign that _______ has been released in a chemical change.
Down
  1. 1. Melting is an example of this type of change.
  2. 2. Salty water is an example of an elements, compound or mixture?
  3. 3. In chemical changes a new _________ is formed.
  4. 4. Two or more substances that are combined but have not chemically reacted is called a _________.
  5. 5. Sometimes a change of _________ indicates a chemical change has taken place.
  6. 6. Chopping wood is an example of a _______ change.
  7. 7. This can indicate that a gas has been released in a chemical reaction.
  8. 11. A single particle that makes up elements, compounds and mixtures but cannot be broken down an further is called an _________.