Science Vocab

3. a biological community of interacting organisms
5. a waste product that your body makes when it uses food for energy
6. an educated guess
9. a disturbance that moves the medium perpendicular to its line of travel
13. oxygen is used to make energy from carbohydrates (sugars)
15. something that is being measured
16. something you change in an experiment
18. when prehistoric plants and animals died and were gradually buried by layers of rock.
20. energy that is stored in an object
23. energy that comes from a source that won't run out
24. a group of atoms bonded together
25. light energy is converted to chemical energy in the form of sugars
26. flows and takes the shape of its container

1. when chemical bonds between atoms are formed or broken
2. type of sugar you get from foods you eat, and your body uses it for energy
4. something that stays the same
7. how fast or slow an object moves
8. when an object is moving
10. particles are barely moving and are close together
11. particles are moving super fast and are spread out
12. the sequence of transfers of matter and energy in the form of food from organism to organism
14. light bends when it passes from one medium to another
17. the variety of life in the world or in a particular habitat or ecosystem
19. we need this to breathe
21. the ability to do work
22. a reaction in which energy is released