This is an activity about the tides. Learners discover how the Moon's gravitational pull causes the level of the ocean to rise and fall twice a day along most coastlines.
What Causes Tides?
Last Mission to the Moon
Apollo 11 in Real Time
|Lunar and Planetary Institute
[Suggest a book]
Seasons, Tides, and Lunar Phases by Tara Haelle
(Spanish Version also
Waiting for high tide by Nikki McClure
High Tide in Hawaii by Mary Pope Osborne