1. Greek Roots: Hydro(A) / Therm water warm, heat, Energy
Vocabulary Construction – Unit 20
Greek Roots: Hydro(A) / Therm water warm, heat, Energy
by Marcia Timmel Art by Phillip Martin

2. 1. thermal
1.(adj.) involving heat

3. 2.(n) the lightest and most abundant element in the universe
2. hydrogen
2.(n) the lightest and most abundant element in the universe

4. 3. (adj) relating to the earth’s heat
3. geothermal
3. (adj) relating to the earth’s heat

5. 4. (adj) a chemical reaction that gives off heat
4. exothermic
4. (adj) a chemical reaction that gives off heat

6. 5. (v) to remove or deprive of water
5. dehydrate
5. (v) to remove or deprive of water

7. 6. (n) a container used to hold liquid at a constant temperature
6. thermos
6. (n) a container used to hold liquid at a constant temperature

8. 7. (n) a receiver that can pick up sounds traveling through water
7. hydrophone
7. (n) a receiver that can pick up sounds traveling through water

9. 8. (adj) a chemical reaction that absorbs heat
8. endothermic
8. (adj) a chemical reaction that absorbs heat

10. 9. hydrology
9. (n) the study of water

11. 10. (v) to give water to something
10. hydrate
10. (v) to give water to something