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Tides and Moon Phases. Unit 5. Tides. The daily rise and fall of Earth’s waters on the shorelines. Caused by the gravitational pull between the Earth, moon , and Sun. Two Types of Tides. Spring Tides Twice a month, the Sun and moon are lined up.
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Tides and MoonPhases Unit 5
Tides • The daily rise and fall of Earth’s waters on the shorelines. • Caused by the gravitational pull between the Earth, moon, and Sun.
Two Types of Tides • Spring Tides • Twice a month, the Sun and moon are lined up. • This combined gravity creates the STRONGEST pull on the water.
Two Types of Tides • Neap Tides • Twice a month, the Sun and moon are at right angles to each other. • This combined gravity creates the WEAKEST pull on the water.
Moon • is kept in orbit by Earth’s gravity. • is visible because it reflects sunlight. • does NOT give off its own light.
MoonPhases • As the Earth revolves around the Sun, the moon revolves around the Earth. • The phase of the moon you see depends on how much of the sunlit side of the moon is facing Earth.