Catapult-Science

5. variable, determined or conditioned by another
6. a factor in a scientific experiment that may be subject to change
8. a source of supply
10. a device for launching an airplane at flying speed (as from an aircraft carrier)
11. projecting or impelling forward
12. a mixture that consists largely of decayed organic matter and is used for fertilizing and conditioning land
13. variable, not dependent
16. of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged
17. observable fact or event : an item of experience or reality

1. the elements, constituents, or substances of which something is composed or can be made
2. the act or process of moving
3. to reuse or make (a substance) available for reuse for biological activities through natural processes of biochemical degradation or modification
4. a figure, extent, or amount obtained by measuring
7. to use again especially in a different way or after reclaiming or reprocessing
9. the process of contaminating
14. to throw forward
15. an artificial reservoir (such as an underground tank) for storing liquids and especially water (such as rainwater)