Solve these clues to fill the grid.
- How plants make food from sunlight
- 3 Across
- Capable of being ___
- 5 Across
- Of or relating to the heat in the interior of the earth
- 6 Across
- Substance used in or made by chemistry
- 7 Across
- A fossil fuel in the ___ state
- 10 Across
- Slippery liquid used for cooking and fuel
- 13 Across
- The difference in electrical charge between two points in a circuit expressed in volts
- 14 Across
- Relating to or derived from the sun or utilizing the energies of the sun
- 16 Across
- Relating to the motion of material bodies and the forces associated therewith
- 1 Down
- Of or relating to or used in the production of electricity by waterpower
- 2 Down
- Energy that makes things warm
- 4 Down
- Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
- 8 Down
- What lets us see; the opposite of dark
- 9 Down
- The particular auditory effect produced by a given cause
- 11 Down
- A unit of electrical energy equal to the work done when a current of one ampere passes through (plural)
- 12 Down
- Deriving destructive energy from the release of atomic energy
- 15 Down