1 / 24

Lesson 2 Reading Guide - KC

Earth ’ s Moon. How does the Moon move around Earth? Why does the Moon ’ s appearance change?. Lesson 2 Reading Guide - KC. Earth ’ s Moon. maria phase waxing phase waning phase. Lesson 2 Reading Guide - Vocab. Seeing the Moon. The Moon does not emit any light

keita
Télécharger la présentation

Lesson 2 Reading Guide - KC

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Earth’s Moon • How does the Moon move around Earth? • Why does the Moon’s appearance change? Lesson 2 Reading Guide - KC

  2. Earth’s Moon • maria • phase • waxing phase • waning phase Lesson 2 Reading Guide - Vocab

  3. Seeing the Moon • The Moon does not emit any light • You only see the Moon because light from the Sun reflects off the Moon and into your eyes. Lesson 2-1

  4. The Moon’s Formation The most widely accepted idea for the Moon’s formation is the giant impact hypothesis. Lesson 2-2

  5. The Moon’s Formation According to the giant impact hypothesis, shortly after Earth formed about 4.6 billion years ago, an object about the size of the planet Mars collided with Earth. Lesson 2-2

  6. The Moon’s Formation(cont.) The impact ejected vaporized rock that formed a ring around Earth. Lesson 2-2

  7. The Moon’s Formation(cont.) Eventually, the material in the ring cooled and clumped together and formed the Moon. Lesson 2-2

  8. The Moon’s Formation(cont.) • The surface of the Moon was shaped early in its history. (Click the picture of the moon to see a video that shows the shaping of the moon’s surface) • Moon’s craters were formed when objects from space crashed into the Moon. • The large, dark, flat areas on the Moon are calledmaria. • Maria formed when lava flowed up through the Moon’s crust and solidified. Lesson 2-2

  9. The Moon’s Motion • While Earth is revolving around the Sun, the Moon is revolving around Earth. • The Moon rotates as it revolves around Earth. • One complete rotation of the Moon takes 27.3 days, and one complete revolution of the Moon around Earth takes 27.3 days • Meaning the Moon makes one rotation in the same amount of time that it makes one revolution around Earth. Lesson 2-3

  10. The Moon’s Motion(cont.) • Because the Moon takes the same amount of time to orbit Earth and make one rotation, the same side of the Moon is always facing Earth. • This side of the Moon that is always facing Earth is called the near side. • The side of the Moon that cannot be seen from Earth is called the far side of the moon. Lesson 2-3

  11. The Moon’s Motion(cont.) Lesson 2-3

  12. Phases of the Moon The lit part of the Moon or a planet that can be seen from Earth is called a phase. Lesson 2-4

  13. The motion of the Moon around Earth causes the phase of the Moon to change. Jason Reed/Photodisc/Getty Images Lesson 2-4

  14. Lesson 2-4

  15. Phases of the Moon(cont.) • The sequence of phases is the lunar cycle. • During the waxing phases, more of the Moon’s near side is lit each night. • During the waning phases, less of the Moon’s near side is lit each night. Lesson 2-4

  16. Phases of the Moon(cont.) • New Moon: the near side of the Moon is completely dark • Waxing Crescent: The portion of the Moon you can see is waxing, or growing into a crescent shape. • First Quarter: You can see half of the sunlit side of the Moon. • Waxing Gibbous: the Moon continues to wax. The visible shape of the Moon is called gibbous. Lesson 2-4

  17. Phases of the Moon(cont.) • Full Moon: the entire near side of the Moon is lit. • Waning Gibbous: the portion of the Moon you can see wanes, or shrinks. • Third Quarter: You can see half of the Moon’s lighted side. • Waning Crescent: you see a crescent once again. Lesson 2-4

  18. Phases of the Moon rap!

  19. Phases of the Moon(cont.) Lesson 2-5

  20. According to the giant impact hypothesis, a large object collided with Earth about 4.5 billion years ago to form the Moon. Lesson 2 - VS

  21. Features like maria, craters, and highlands formed on the Moon’s surface early in its history. • The Moon’s phases change in a regular pattern during the Moon’s lunar cycle. Jason Reed/Photodisc/Getty Images Lesson 2 - VS

  22. 19. What term is given to the side of the Moon always facing Earth? A. far side B. phase C. near side D. maria Lesson 2 – LR2

  23. 20. Which of these is characterized by more of the Moon’s near side being lit each night? A. waxing phase B. waning phase C. lunar cycle D. full moon Lesson 2 – LR3

  24. Do you agree or disagree? 21. The Moon was once a planet that orbited the Sun between Earth and Mars. 22. Earth’s shadow causes the changing appearance of the Moon. Lesson 2 - Now

More Related