Science

2. An electrical impulse wave and received.
5. And organism that feeds on and breaks down dead plants or animals.
8. The powerhouse of the cell.
9. An organism that creates its own food or energy.
11. Simple sugars.
15. A wave where the medium's vibration is perpendicular.
17. What are molecules made up of?
18. When light travels through a material and bounces off of a different material.
19. A natural mineral.
20. The unit of frequency.
22. The distance between two crests
24. Animals that are killed and eaten by other animals.
26. The process by which plants use sunlight, water, and carbon dioxide to create oxygen.

1. An area of illumination on a screen.
3. A non-living part of a an ecosystem that shapes its environment.
4. A wave where the medium's vibration is parallel to the direction of the wave.
6. The total amount of matter in an object.
7. A quantity that expresses how hot or cold something is.
10. A point of the surface of a wave where the medium is at maximum.
12. No light can pass through
13. Not made by humans.
14. The measurement of the distance of an object form the base to the top.
16. A biological community of interacting organisms and their physical environment.
21. The strength for physical or mental activity.
23. The source of energy for use and storage(cellular level).
25. Living or once living components.