Across
- 2. measure of how fast something moves in a particular direction
- 5. process in which energy is emitted as particles or waves
- 8. very small particle that exists in the nucleus of every atom and has a positive charge
- 10. the variable that is changed in a scientific experiment
- 14. has definite volume but no shape of its own
- 15. when two nuclei are joined into a larger nucleus
- 19. the amount of space between two things
- 21. action which is influenced by other actions
- 23. particle made up of two or more atoms that are chemically bonded together
- 25. matter which has a specific composition and specific properties
Down
- 1. differences among individual outputs of a process
- 3. when a positively charged ion forms a bond with a negatively charged ion
- 4. is any factor that can be controlled in an experiment
- 6. a negatively charged subatomic particle
- 7. measures how widely spread data points are
- 9. quantitive measure of how hot or cold something is
- 11. substance that is made entirely from one type of atom
- 12. any compound that has stored energy
- 13. measure of amount of matter in an object
- 16. force of attraction between two atoms
- 17. When you are going as fast as you can
- 18. process in which a large nucleus splits into two smaller nuclei with the release of energy.
- 20. the galaxy that contains our solar system
- 22. way of measuring how quickly something is moving
- 24. the amount of anything per unit volume