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MOON

MOON. Luna: The Earth’s Moon. Natural or artificial bodies that revolve around larger bodies such as planets are called satellites. Except for Mercury and Venus, all of the planets have natural satellites called moons.

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MOON

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  1. MOON

  2. Luna: The Earth’s Moon • Natural or artificial bodies that revolve around larger bodies such as planets are called satellites. • Except for Mercury and Venus, all of the planets have natural satellites called moons. • Earth’s moon is also called Luna. Rocks brought back from the moon were found to be almost 4.5 billion years old.

  3. The surfaces of bodies that have no atmosphere and no erosion preserve a record of almost all of the impacts of objects that have struck them. • Scientists think that Earth’s moon formed from debris that was ejected into space after a large body collided with Earth.

  4. Formation of the Moon • Open book to page 493, examine Figure 2 • Create a 3-paneled comic strip on your notes that shows how the moon formed • Answer: • What makes scientists believe that this theory about the formation of the moon is correct? • Why are there craters on the moon now?

  5. Why do we never see the DARK SIDE? • Synchronous Rotation is the reason we never see the dark side of the moon. • Over the millennia, the Moon has become "locked" into a special kind of motion around the Earth. • It rotates on its axis at the same pace as it revolves around the Earth • As a result, the Moon keeps the same face toward us throughout its orbit.

  6. Moon Phases A phase is the change in the sunlit area of the moon as seen from the Earth CAUSED BY: As the moon revolves around Earth, the amount of sunlight on the side of the moon that faces Earth changes. • The different appearances of the moon are called phases.

  7. Waxing vs. Waning • When the moon is waxing, the sunlit fraction that we see from Earth is getting larger. • When the moon is waning, the sunlit fraction that we see from Earth is getting smaller.

  8. E New Moon What we see • New moon occurs when the moon is between the sun & the Earth. • The dark side of the moon is facing the Earth. What is happening from above. Sunlight

  9. E Waxing Crescent Moon • When the moon is between New & 1st Quarter it is called a waxing crescent. 1st Quarter Waxing Crescent New Moon Sunlight

  10. E First QuarterMoon What we see • The First quarter moon occurs when the moon is halfway between new and full. • As seen from the Earth, half the moon’s disk is illuminated. What is happening from above. Sunlight

  11. E WaxingGibbous Moon Full Moon Waxing Gibbous Waning Gibbous • When the moon is between 1st Quarter & Full it is called a waxing gibbous. 1st Quarter Sunlight

  12. E Full Moon What we see • The full moon occurs when the Moon & the Sun are on opposite sides of the Earth. • The lighted side of the moon is facing Earth. What is happening from above. Sunlight

  13. E WaningGibbous Moon Full Moon Waning Gibbous When the moon is between Full & 3rd it is called a waning gibbous. 3rd Quarter Sunlight

  14. E Last QuarterMoon What we see • The Third or last quarter moon occurs halfway between the full moon & the new moon. • As seen from the Earth, half the moon’s disk is illuminated. What is happening from above. Sunlight

  15. E WaningCrescent Moon • When the moon is between 3rd & New it is called a waning crescent. 3rd Quarter Waning Crescent New Moon Sunlight

  16. Look at the letter in the moon • When looking at the moon, if he shape makes a “b” it is getting born (waxing). • If the shape makes a “d” it is ‘dying’ (waning).

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