Moon Phases, Eclipses, and Tides
The Moon is Earth’s closest neighbor, and its motion produces some of the most familiar sights in the sky: the changing shape of the Moon, the rare drama of an eclipse, and the daily rise and fall of the tides. All three come from the same simple geometry of Sun, Earth, and Moon. Understanding it […]
Waves, Tides, Currents, and Ocean Resources
The ocean is always moving in three distinct ways: waves ripple its surface, tides raise and lower it, and currents carry water around the globe. Each has a different cause, and together they shape coastlines, weather, and life. Sorting out waves, tides, and currents is a favorite earth science topic. This lesson covers the three […]
