tidal power energy

An online crossword puzzle with 10 words. Play it free at AgileCrosswords.com.

Clues

the force of attraction between all masses in the universe
a stream in which the effects of the tide extend far upstream
a form of hydropower that exploits
any naturally occurring, theoretically inexhaustible source of energy
the planet third in order from the sun
A way of converting the energy of tides into electric power
the use of tidal
rotary engine that extracts energy from a fluid flow
the earth's natural satellite, orbiting the earth at a mean distance of 238,857 miles
the star that is the central body of the solar system