Understanding Matter

2. A ______ change happens when matter changes its appearance.
5. A ______ change is irreversible.
6. All matter is made up of tiny particles called...
11. When vapour or gas turns into a liquid.
12. When anything solid turns into a gas without first becoming liquid.
13. In a ______, the particles are very closely packed together because they are attracted to each other.

1. Everything that has mass and occupies volume.
3. When a liquid turns into a solid.
4. The process of turning from liquid into vapour.
7. When a solid turns into a liquid.
8. When a gas transforms directly into a solid
9. A ______ will commonly transform into a liquid through the process of condensation.
10. ______ can be easily transformed to a solid or a gas.