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Moon Tides: How the Moon Affects Ocean Tides
Discusses the different kinds of tides, high and low tides, lunar tide facts, questions people have asked about tides, and causes of tides.
Khan Academy
Khan Academy: Codex Leicester: Fossils/mountains, Moon/tides
An excerpt from Leonardo da Vinci's Codex Leicester. Find out how this "Renaissance man" observed the Earth and learned more about tides, moons, and fossils in the mountains.
Texas Education Agency
Texas Gateway: The Moon Lunar Cycle and Tides
Given models and illustrations, students will identify, demonstrate, and predict the sequence of events in the lunar cycle and relate the position of the moon and sun to their effect on ocean tides.
Harvard University
Harvard University: Eyes on the Sky, Feet on the Ground: The Earth's Moon
In this online textbook, students explore the phases of the moon, the moon's orbit, the origin of the moon, and the tides. Includes numerous inquiry-based activities.
Georgia Department of Education
Ga Virtual Learning: The Moon
In this interactive tutorial students will explore what it is like on the Moon. Learn why the shape of the Moon seem to change and also about lunar eclipses. Discover why the tide changes twice a day and explore how the cycle of the Moon...
Woods Hole Oceanographic Institution
Whoi: What Causes Tides?
The Woods Hole Oceanographic Institute provides an in-depth but easy to read article on the role of the moon and the sun in respect to tides.
CK-12 Foundation
Ck 12: Earth Science: Tides Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about the different types of tides and the Moon's effect on Earth's tides. Includes a few questions to check for understanding.
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.
E-learning for Kids
E Learning for Kids: Antarctica Penguins: How Does the Moon Influence the Tide?
This lesson explains how the moon affects tides on Earth and about the different types of tides.
NASA
Nasa: Space Place: High Tide on Io!
What's it like on Jupiter's moon, Io? Find out in this short, illustrated tutorial.
Other
Bad Astronomy/phil Plait: Tides and Why Our Days Are Getting Longer
Why does the Moon always shows the same face to the Earth? Why is the Moon's rotation period the same as the length of time it takes to orbit the Earth? Why are there two tides a day? These questions and more are answered here.
Enchanted Learning
Enchanted Learning: Earth's Oceans Tides
This site explains what tides are and the difference between Proxigean Spring Tides, spring tides, and neap tides, and how these are formed. Graphic illustrations are provided.
Text Project
Text Project: Fyi for Kids: The Tides [Pdf]
This FYI for Kids (Volume 5, Issue 3) focuses on the tides. It explains the pull on the earth by the sun and moon and how the tides go in and out.
MadSci Network
Mad Scientist: Why High Tide Away From the Moon or Sun?
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.
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.
NASA
Nasa: Astronomy Picture of the Day: Uranus's Moon Ariel
Provides a brief overview of Ariel, one of Uranus's moons. Details how its deep valleys were formed. A NASA astronomy picture of the day.
PBS
Pbs Learning Media: More on Galileo's Big Mistake
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.
Curated OER
Eyes on the Sky, Feet on the Ground: The Earth's Moon
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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