Unit 0

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Across
  1. 2. The change of state from a gas to a liquid. This happens when a gas loses heat energy.
  2. 5. The amount of mass in a certain amount of space. Density describes how tightly matter is packed.
  3. 6. Two or more substances combined without forming a new substance. Each substance keeps its own properties.
  4. 8. The ability to cause a change or do work. Energy can move objects, create heat, or produce light.
  5. 10. A state of matter that has no definite shape or volume. Its particles are spread out and move freely.
  6. 11. A substance made when two or more different elements chemically join together. A compound has new properties.
  7. 12. A mixture that is evenly mixed throughout. Every part of the mixture has the same appearance and composition.
  8. 14. A state of matter that has a definite volume but takes the shape of its container. Its particles can move past one another.
Down
  1. 1. The change of state from a liquid to a solid. It happens when a liquid loses enough heat energy.
  2. 3. The change of state from a liquid to a gas. It happens when particles at the surface of a liquid gain energy.
  3. 4. A mixture that is not evenly mixed throughout. Its different parts can often be seen separately.
  4. 7. The change of state from a solid to a liquid. This happens when a solid gains enough heat energy.
  5. 9. Anything that has mass and takes up space. Matter includes solids, liquids, and gases.
  6. 13. A state of matter that has a definite shape and volume. Its particles are packed closely together.
  7. 14. of Conservation of Mass Matter cannot be created or destroyed during a physical or chemical change. The total amount of matter stays the same.