Across
- 2. Any factor that can be controlled,changed,or measured in an experiment.
- 3. decay An unstable atomic nucleus loses energy by radiation.
- 5. The values chosen for a controlled variable.
- 6. The external from or appearance characteristic of someone or something.
- 8. A small portion of matter.
- 10. useable power such as heat or electricity.
- 11. A decay product of Uranium.
- 13. A thick rope of wire or nonmetallic fiber.
- 14. How far something is.
- 16. The measurement or extent of something from end to end.
- 19. The production and discharge of something ,especially gas or radiation.
- 20. compound is resisting itself to alter itself to other form.
- 22. A spot on the sun which appears darker because it is not as hot as other areas.
- 24. The distance between two identical adjacent point in a wave.
Down
- 1. number The number protons plus neutrons in an atom.
- 2. Mass of a unit volume of a material substance.
- 4. wind The continuous flow of charged particles from the sun.
- 7. relating to or consisting of molecules.
- 9. It is the emission of energy or particles.
- 12. An explosive warhead carried by a missile.
- 15. The greatest or highest amount possible or attained.
- 16. when two nuclei are joined in that can be to a larger nucleus.
- 17. a nucleus splits into smaller nucley.
- 18. The speed of something in a given direction .
- 21. The rate at which someone or something is able to move or operate.
- 23. A basic unit of a chemical element .