Unit 2 Vocabulary: Matter, Property, and Change

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Across
  1. 3. A measure of the amount of matter in an object
  2. 8. A measure of the size of a body or region in three-dimensional space
  3. 10. Zero Temperature at which all molecular energy stops
  4. 12. A measure of the quantity of some physical property
  5. 14. Relating to a chemical reaction that absorbs heat.
  6. 15. A measure of the heaviness of an object.
  7. 16. Point The temperature at which a liquid changes into a solid
  8. 17. Point The temperature at which a liquid changes to a vapor or gas.
Down
  1. 1. The measure of how hot or cold something is
  2. 2. Composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid.
  3. 4. the ability of a substance to dissolve
  4. 5. A unit of matter, the smallest unit of an element, having all the characteristics of that element and consisting of a dense, central, positively charged nucleus surrounded by a system of electrons.
  5. 6. Anything that has mass; most of the matter in the universe is composed of atoms which are themselves composed of subatomic particles
  6. 7. The state of matter that has a fixed shape unlike a gas or liquid and unlike a gas, a solid has a fixed volume.
  7. 9. Expansion An increase in the size of a substance in response to an increase in the temperature of the substance
  8. 11. A substance that cannot be separated or broken down into simpler substances by chemical means
  9. 13. Relating to a chemical reaction that releases heat.
  10. 18. A substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container.