Earth from a million miles

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Presentation transcript:

Earth from a million miles https://www.youtube.com/watch?v=CFrP6QfbC2g Seasons https://www.youtube.com/watch?v=O9hawBb3wbk

How are tides influenced by the moon and Sun?

Tides The rise and fall of sea levels Caused by the gravitational forces of the Sun and Moon The force of gravity is affected by mass and distance (radius) Which is bigger? Sun or Moon? Which is Closer? Sun or Moon?

Tidal Bulge

Tidal Range The difference in water level between high tide/Low Tide Depends on the positions of the Sun and moon Spring Tide Neap Tide

Spring Tide Largest tidal range Earth, moon, Sun form a straight line

Neap Tide Lowest tidal range Earth, moon, sun form a right angle Neap – sounds like “Knee”, which can bend at a right angle