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Lesson 3: How Do Earth and Its Moon Move?

Lesson 3: How Do Earth and Its Moon Move?. By: Mr. Leslie’s Class. Definitions. While orbiting the Sun, Earth also turns on an imaginary line called an axis With each rotation, or turn, on Earth’s axis, there is one period of daylight and one period of night. Earth’s Revolution. Question???.

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Lesson 3: How Do Earth and Its Moon Move?

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  1. Lesson 3:How Do Earth and Its Moon Move? By: Mr. Leslie’s Class

  2. Definitions • While orbiting the Sun, Earth also turns on an imaginary line called an axis • With each rotation, or turn, on Earth’s axis, there is one period of daylight and one period of night.

  3. Earth’s Revolution

  4. Question??? • What causes summer days to be long and warm? • The sunlight hits Earth’s surface more directly. • We live in the Northern hemisphere. Which picture shows summer on Earth for the northern hemisphere? Summer for Winter for Northern hemisphere Northern hemisphere

  5. Phases of the Moon

  6. Moon Phases • Lunar eclipse – occurs when the Moon passes into Earth’s shadow. • Next Lunar eclipse – December 21, 2010

  7. Moon Phases • Solar eclipse – occurs when the moon passes in front of the Earth to block sunlight from reaching Earth. • Next Solar eclipse – June 1, 2011

  8. Definition • Revolution – orbits, or trip, around the Sun. • Earth takes 365.25 days to revolve around the Sun. • The moon orbits/revolves the Earth • Rotation – The amount of time it takes to for one day to happen. • Earth takes 23 hours and 56 minutes to rotate once.

  9. Rotation and Revolution Inner Planet Revolution

  10. Question??? • What causes planets to have days that are longer or shorter than a day on Earth? • Each planet rotates at a different speed, so it takes more or fewer hours to rotate once.

  11. Main Idea • The movement of Earth and Moon cause changes in seasons, daylight hours, the phases of the moon, and the night sky.

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