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Unit 9: Earth’s Cycles.

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Presentation on theme: "Unit 9: Earth’s Cycles."— Presentation transcript:

1 Unit 9: Earth’s Cycles

2 Rotation VS. Revolution

3 Click Earth Rotation of the Earth
Rotation means to spin. Earth rotates on its axis. Earth completes 1 rotation every 24 hours. Earth rotates counterclockwise Click Earth

4 Now it’s your turn to Rotate
Quietly stand up and push your chair in. Stand behind your chair. Stand with both feet inside one square tile on the classroom floor. Lift your left arm to represent the Earth’s axis. When your teacher tells you to, tilt your body slightly just like the Earth. Your left arm is pointing to Polaris, the North Star. Then, rotate counterclockwise. Be sure to stay inside of your square tile. This is rotation…spinning in place!

5 Revolution of the Earth
Revolution means to go around something…orbit. Earth revolves around the sun counterclockwise. Earth takes 365 days to make one revolution around the sun. CLICK on SUN Animation of revolution

6 Now it’s your turn to Revolve
Quietly stand up and push your chair in. Stand behind your chair. Spread out. 2. When your teacher tells you to, walk around your table. You are making a revolution. 3. Now try rotating (spinning) and revolving (orbiting) at the same time.

7 Revolution and Tilt of Earth
Questions: What causes Day and Night? What causes the Seasons? Revolution and Tilt of Earth Rotation

8 Read Reason for the Seasons then complete the Seasons Foldable.
5 points each Label the four seasons on flap. 5 points for each season. Color coded Earth underneath each flap. 5 points for each correctly colored Earth. Correctly filled in information beside the corresponding color coded Earth. Each answer is worth 5 points. Arrows going in the correct direction CCW, 5 points. 20 minutes 15 minutes Click to begin timer Color Code!

9 23.5° North Pole South Pole x Winter

10 Neither toward or away from Neither toward or away from
Tilted 23.5° toward Polaris, the North Star Winter Solstice – about December 21st a) Northern Hemisphere is experiencing the _________day b) Southern Hemisphere is North Pole points ______the Sun South Pole points ______the Sun Tilted 23.5° toward Polaris, the North Star Summer Solstice – about June 21st a) Northern Hemisphere is experiencing the _________day b) Southern Hemisphere is North Pole points ______the Sun South Pole points ______the Sun Shortest Longest Away from Toward Longest Shortest Toward Away from Tilted 23.5° toward Polaris, the North Star Autumnal Equinox– about September 21st North Pole points ___________ the Sun South Pole points ___________ the Sun Tilted 23.5° toward Polaris, the North Star Vernal Equinox– about March 21st North Pole points ___________ the Sun South Pole points ___________ the Sun Neither toward or away from Neither toward or away from

11 Identify the difference between the Earth’s rotation and revolution.

12 Reason for the Seasons Click on blue screen

13 Cut out and paste into ISN. Answer questions.
12 points each

14 Answer questions 5, 6, 7, and 8 using the diagram of the Earth shown above.

15 Quiz Time

16 C A B D 12 POINTS EACH

17 1. F T 2. B 3. B 4. D 5. D 10 POINTS EACH

18 E D B 30 POINTS EACH

19 Can you name the 8 traditionally recognized phases of the moon?
Is there an order to these phases? Are there any patterns? Can you name the 8 traditionally recognized phases of the moon?

20 Click the Moon Cartoon of Moon Phases

21 12 points each 1st Quarter Waxing Gibbous Waxing Crescent Full Moon New Moon Waning Crescent Waning Gibbous 3rd Quarter

22 Phases of the Moon Video
Click on the moon

23 Modeling Phases of the Moon

24 Click on the moon

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