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# Earth's rotation powerpoint

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

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

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### Transcript

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