Write the letter of the matching definition next to each term.
1. adaptation
A. The resistance encountered when one body is moved in contact with another
2. attract
B. Solid homogeneous inorganic substances occurring in nature having a definite chemical composition
3. metamorphic
C. The remains of a plant or animal that existed in a past geological age and that has been excavated
4. celsius
D. Engine that converts mechanical energy into electrical energy by electromagnetic induction
5. clay
E. Swedish astronomer who devised the centigrade thermometer
6. sedimentary
F. Condition in which the earth's surface is worn away by the action of water and wind
7. conduction
G. All the means by which any alleged matter of fact whose truth is investigated at judicial trial is
8. conductor
H. The natural world around us
9. mineral
I. The act of conducting a controlled test or investigation
10. reuse
J. Produced by the action of water
11. ecosystem
K. Energy that makes things warm
12. environment
L. Produced under conditions involving intense heat
13. erosion
M. Of or relating to ___
14. evidence
N. To direct toward itself or oneself by means of some psychological power or physical attributes
15. experiment
O. A system formed by the interaction of a community of organisms with their physical environment
16. extinct
P. United States general who commanded United States forces in Europe from 1945 to 1949 and who
17. fossil
Q. A material that allows heat or electric current to pass through it.
18. friction
R. No longer in existence
19. generator
S. The transmission of heat or electricity or sound
20. habitat
T. The responsive adjustment of a sense organ to varying conditions
21. hardness
U. The type of environment in which an organism or group normally lives or occurs
22. heat
V. The property of being rigid and resistant to pressure
23. humus
W. To use again after processing
24. igneous
X. Partially decomposed organic matter