tides

Discusses the nature, causes, effects, and uses of tides.

A photographic introduction to ocean tides, explaining what they are, discussing the relationship between the moon and tides, and looking at deep tides, and interactions of tides, people, and animals.

Provides answers to thirteen questions about time, tides, and revolutions, discussing the Earth's orbit, seasons, the length of a year, clocks, the International Date Line, and more.

An exploration of the moon that discusses a theory of how it was formed, temperatures, phases, eclipses, gravity, and how it affects tides, and includes a related project.

Presents an introduction to gravity, explaining what it is, and showing how the forces and properties of gravity affect everyday life.

Relates how the crab came to live both in the sea and on land and to lose its hard shell once a year.

To celebrate her eighth birthday, Carrie's grandmother takes her by boat to Billingsgate Island in Cape Cod, an island that is only visible during low tides.

A curious little boy investigates the wonders of the changing tides and the different creatures, smells, and textures that come out during the tide cycle.

Describes the different types of ocean waves, tides, and currents, how they are created, and their effect on the climate and the shorelines.

Discusses the causes of ocean waves and tides and their effects on both people and the earth.