Science

2. is the main energy source for life on earth
3. amount of matter in an object
6. the study of life;also known as Life Science
7. an organized set of investigation procedures used by scientists
12. part of earth that contains all ecosystems
13. things that have all the characteristics of life; made of one or more cells
15. all non-living things in an environment
16. community and its non-living environment
17. organisms that are eaten
18. a display of information or data

1. organisms that seek out and eat other organisms
2. any relationships in which two species live closely together
4. break down organic matter
5. educated guess or testable prediction
8. process that uses observation and investigation to gain knowledge about events in nature
9. individual living thing
10. organized procedure for testing a hypothesis
11. Mass per unit volume of a material
12. all living things in an environment
14. standard for comparison