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Tides & Eclipses Astronomy Page 12 ©Mark Place,

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Presentation on theme: "Tides & Eclipses Astronomy Page 12 ©Mark Place,"— Presentation transcript:

1 Tides & Eclipses Astronomy Page 12 ©Mark Place, 2009-20010

2 Tides

3

4

5 What causes tides?

6 Caused by the gravitational pull of the moon & sun

7 which types of tides have a larger range?
Based on the diagram, which types of tides have a larger range? SPRING TIDES

8 During which phases of the moon
do neap and spring tides occur?

9 1st & 3rd Quarters Neap?

10 New or Full Moon Spring?

11 How many tides a day? 2 high tides 2 low tides

12 Why are there not exactly
12 hours between tides? because the moon revolves around the Earth while the Earth rotates

13

14 solar and lunar eclipses?
What’s the difference between solar and lunar eclipses? Solar Lunar Earth goes into moon’s shadow moon goes into Earth’s shadow

15 Solar Eclipse What phase? New Moon

16 Solar Eclipse 2010

17 Solar Eclipses through 2020

18 Lunar Eclipse What phase? Full Moon

19

20 Lunar Eclipse 2010

21 solar and lunar eclipses
Why don’t we have solar and lunar eclipses every month? The moon’s orbit is tilted 5° from the Earth’s orbit.

22

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