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Where did the term “lunacy” come from?

Learn about tides, eclipses, and lunar phases and how they are influenced by the gravitational pull of the moon and sun. Understand the difference between spring tides and neap tides, as well as solar and lunar eclipses. Explore the fascinating phenomena that occur in our Earth's space.

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Where did the term “lunacy” come from?

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  1. Where did the term “lunacy” come from?

  2. What does “apogee” and “perigee” mean?

  3. Aim: How does the moon affect the earth? • Topic: Unit 8 Earth in Space • Main Idea: Tides and Eclipses

  4. 1) What are tides? Cyclic and predictable changing levels of the ocean water caused by gravitational pull of the moon and sun.

  5. 2) Which has a greater effect? Why? The moon has a greater effect because it is closer.

  6. Where are the biggest differences between high tide and low tide? The Bay of Fundy in Nova Scotia where it could change as much as 52.5 feet.

  7. How many high and low tides do we have daily? 1st high tide 2nd high tide 2nd low tide 1st low tide One high tide every 12 hours One low tide every 12 hours

  8. 3) What are spring tides? Full and New moon These are the really high and really low tides caused when the sun, earth and moon are lined up.

  9. 3) What are neap tides? Quarter moon phases Low high tides and high low tides when the earth, moon and sun are 90o to each other.

  10. 4) What is a solar eclipse? New Moon The moon blocks the sunlight and casts a shadow on the earth. Because the moon is closer it can block out the sun.

  11. 4) What is a lunar eclipse? This is when the moon falls into the earth’s shadow. The moon appears red. Sunlight is being refracted and projected onto the moon.

  12. Full moon

  13. Why don’t eclipses happen twice a month?

  14. 5) Why don’t eclipses happen twice a month? The moon is tilted at a 5 degree angle to the earth’s orbit so at times it is too high or low. 5o

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