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# Earth's rotation powerpoint

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This powerpoint shows how Earth rotates on it's axis.

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### Earth's rotation powerpoint

1. 1. Sun , Earth, and Moon Presented by Dr. Marjorie Anne Wallace Elementary Science Resource Teacher
2. 2. I bet you know the answers! <ul><li>What causes day & night? </li></ul><ul><li>Which one is bigger the earth or the moon? </li></ul><ul><li>Where does the moon get its light from? </li></ul><ul><li>What percent of the earth is always lit by the sun? </li></ul><ul><li>How many stars are in our solar system? </li></ul><ul><li>How many days does it take for the Earth to revolve around the sun? </li></ul><ul><li>How many low and high tides on Earth every 24 hours? </li></ul>
3. 3. The Earth: <ul><li>-is the third planet from the Sun, </li></ul><ul><li>-is an oblated sphere, </li></ul><ul><li>-rotates on its imaginary </li></ul><ul><li>axis counterclockwise every </li></ul><ul><li>24 hours or 1 day, </li></ul><ul><li>-appears blue in space </li></ul><ul><li>because it is 70% water, </li></ul><ul><li>-revolves around the sun every </li></ul><ul><li>365 days or 1 year. </li></ul>
4. 4. We breathe: <ul><li>78% nitrogen </li></ul><ul><li>21% oxygen </li></ul><ul><li>1% argon, neon, carbon dioxide, neon, & krypton </li></ul>
5. 5. Which one is the smallest? Which one is the largest? <ul><li>Can you put these in size order? </li></ul><ul><li>Place the following in order from largest to smallest. </li></ul><ul><ul><ul><li>Moon </li></ul></ul></ul><ul><ul><ul><li>Sun </li></ul></ul></ul><ul><ul><ul><li>Earth </li></ul></ul></ul>
6. 6. Answer: Sun, Earth, then moon <ul><li>The sun is the largest </li></ul><ul><li>Next in size is the Earth. </li></ul><ul><li>The moon is smaller than the Earth. </li></ul>
7. 7. 2000 SOL #4.7 <ul><li>Which of these is the biggest? </li></ul><ul><li>F The moon </li></ul><ul><li>G The Earth </li></ul><ul><li>H The sun </li></ul><ul><li>J Jupiter </li></ul>
8. 8. Answer: H The sun is the largest! Our sun is the only star in our solar system. The sun is also the largest heavenly body in our solar system.
9. 9. Earth Patterns,Cycles, and Change - SOL 3.7, 4.7 <ul><li>The sun heats the Earth unevenly, making the poles cold and the tropics hot, because- </li></ul><ul><li>A the tropics face more directly </li></ul><ul><li>toward the sun </li></ul><ul><li>B the poles are covered with ice </li></ul><ul><li>which causes cold air </li></ul><ul><li>C seasons change </li></ul><ul><li>D weather changes </li></ul>
10. 10. 2001 SOL 3.7 & 4.7 <ul><li>The moon revolves around - </li></ul><ul><ul><li>F itself </li></ul></ul><ul><ul><li>G the Earth </li></ul></ul><ul><ul><li>H the sun </li></ul></ul><ul><ul><li>J the solar system </li></ul></ul>
11. 11. <ul><li>The moon revolves or orbits the Earth once every 29 days. </li></ul><ul><li>We all ways see the same side of the moon because the moon rotates and revolves at about the same speed. </li></ul>
12. 12. Earth Science Question: rotation <ul><li>What is rotation? (define) </li></ul><ul><li>The rotation of the Earth on its axis causes- </li></ul><ul><ul><li>A days </li></ul></ul><ul><ul><li>B months </li></ul></ul><ul><ul><li>C seasons </li></ul></ul><ul><ul><li>D years </li></ul></ul>
13. 13. Rotation causes day & night. <ul><li>Rotation is the turning or spinning of the Earth in one place on its imaginary axis. </li></ul><ul><li>Rotation of the earth on its axis causes day & night. (answer A). </li></ul>
14. 14. Earth Science Question: <ul><li>Which of these shows the location of a polar ice cap? </li></ul><ul><li>Which of these shows the location of the equator? </li></ul>B A C C D
15. 15. Polar ice caps= A Equator= C 0º latitude 90º latitude
16. 16. Which of these is caused by the turning of the Earth? <ul><ul><li>F Summer and winter </li></ul></ul><ul><ul><li>G Stars </li></ul></ul><ul><ul><li>H Day and night </li></ul></ul><ul><ul><li>J Moon phases </li></ul></ul>
17. 17. The turning of the Earth causes <ul><li>Day & Night </li></ul>
18. 18. When the moon is seen from the Earth as a whole circle, it is called a- <ul><ul><li>A Crescent moon </li></ul></ul><ul><ul><li>B Full moon </li></ul></ul><ul><ul><li>C Half moon </li></ul></ul><ul><ul><li>D New moon </li></ul></ul>
19. 19. When the moon is seen from the Earth as a whole circle, it is called a FULL MOON.
20. 20. Which of these is the next phase of the moon? <ul><li>New Moon --- Waxing Crescent --- ? </li></ul><ul><li>F Full Moon </li></ul><ul><li>G Waning Crescent </li></ul><ul><li>H First Quarter </li></ul><ul><li>J Waxing Gibbous </li></ul>
21. 21. The next major phase of the moon would be… <ul><li>First quarter. </li></ul><ul><li>Just think about it…the </li></ul><ul><li>New moon (can only get bigger. Or = Waxing).. </li></ul><ul><li>Then comes Waxing crescent …next is </li></ul><ul><li>First quarter …then </li></ul><ul><li>Waxing Gibbous and then a </li></ul><ul><li>Full Moon . </li></ul>
22. 22. The revolution of the Earth around the Sun takes- <ul><ul><li>A a day & night or 12 hours </li></ul></ul><ul><ul><li>B a week or 7 days </li></ul></ul><ul><ul><li>C a month or 29-31 days </li></ul></ul><ul><ul><li>D a year or 365 days </li></ul></ul>
23. 23. The revolution of the Earth around the sun <ul><li>Takes 365 days </li></ul><ul><li>or one year. </li></ul><ul><li>NOTE: </li></ul><ul><li>Due to the tilt of the Earth’s axis during revolution, the Earth experiences seasons. </li></ul>