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Tidal Heating of Moons

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Presentation on theme: "Tidal Heating of Moons"— Presentation transcript:

1 Tidal Heating of Moons /image_feature_758.html

2 Tides on Earth

3 Tides on Earth

4 Tides on Earth

5 Tides on Earth

6 Moons in the Solar System Earth’s Mars’ Jupiter’s Saturn’s Uranus’ Neptune’sPluto’s

7 Moons in the Solar System Earth’s Mars’ Jupiter’s Saturn’s Uranus’ Neptune’sPluto’s

8 Jupiter’s Moon Io

9 Jupiter’s Moon Io /image_feature_758.html science-at-nasa/2007/09mar_alienvolcano/

10 Jupiter’s Moon Europa

11 Europa’s Cracked Icy Surface EuropaEarth (Greenland)

12 Saturn’s Moon Enceladus

13 Enceladus’ Briny Geysers

14 Neptune’s Moon Triton

15 Tidal Heating Activity

16 Stretching elastic bands! Changing stretching = friction = heat Gravity stretches Moons = tidal force Changing tidal forces also cause heat Certain arrangements result in lots of stretching

17 The Rings of Saturn

18 The Rings of Saturn

19 The Rings of Saturn Enceladus & the E ring!

20 Summary Some moons are far from the Sun but are heated somehow Gravity stretches moons = tidal force Changing tidal forces provides heat by friction Heated moons can have volcanoes, geysers, and oceans! –Tidal heating means water can be a liquid even in places far from the Sun. Where there’s water, there might be life! Follow the water!


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