Across
- 1. a type of chemical reaction that absorbs energy to break bonds, getting colder in the process
- 6. a characteristic of matter related to the current state of matter
- 9. when two more substances cause a chemical change to occur
- 12. a law that states that matter can never be created or destroyed; only changed
- 13. a change in matter that DOES change the chemical composition of matter; physical properties are usually changed too
- 14. the resistance a fluid has to flowing
Down
- 2. a type of chemical reaction that releases stored energy when bonds are created, getting hotter in the process
- 3. a measurement of the average amount of kinetic energy in a substance
- 4. a change in matter does NOT change the chemical composition of matter; only physical properties are changed
- 5. a theory that explains what happens to matter when the amount of energy is increased or decreased
- 7. the amount of space matter takes up
- 8. a characteristic of matter that is related to its ability to change its chemical composition
- 10. a measurement of how compact the molecules in matter are
- 11. the constant pushing force exerted by one thing on another