Science Buddies
Science Buddies: Tireless Tides: Extracting Energy From Ocean Tides
Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within...
CK-12 Foundation
Ck 12: Earth Science: Tides
[Free Registration/Login may be required to access all resource tools.] Reveals tidal patterns and that tides are caused by the gravitational attraction of the Sun and Moon to Earth.
Ducksters
Ducksters: Earth Science for Kids: Ocean Tides
Did you know the rising and falling of the sea level is caused by the gravity of the Moon and the Sun? Kids learn about ocean tides including tidal currents and types of tides on this site.
Other
Nasa: Iss Earth Kam
Students get a whole new perspective of the world through images obtained from the International Space Station. Students can even request images to be taken through ISS EarthKAM. Activities and educator guides are provided.