Primary
MadSci Network

Mad Scientist: Why High Tide Away From the Moon or Sun?

For Students 9th - 10th
An excellent and thorough answer to the often asked question about high tide "bulges" on the side of Earth facing away from the Moon or Sun.
Website
Ducksters

Ducksters: Earth Science for Kids: Ocean Tides

For Students 1st - 9th
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.
Article
PBS

Pbs Learning Media: More on Galileo's Big Mistake

For Students 9th - 10th
Even great scientists make mistakes! This illustrated essay from the NOVA Web site looks at Galileo's theory of the tides, which, while well thought out, was wrong.
Graphic
Curated OER

Eyes on the Sky, Feet on the Ground: The Earth's Moon

For Students 3rd - 8th
In this online textbook produced by the Smithsonian, students explore the phases of the moon, the moon's orbit, the origin of the moon, and the tides. Includes numerous inquiry-based activities.

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