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Earth rotates on a tilted axis and orbits the Sun

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Presentation on theme: "Earth rotates on a tilted axis and orbits the Sun"— Presentation transcript:

1 Earth rotates on a tilted axis and orbits the Sun
Objective: Explain why Earth has day and night.

2 Axis of rotation Earth rotates around an imaginary line running through its center Earth turns on its axis in 24 hours

3 Earth’s tilted axis and orbit cause seasons.
The Sun’s gravitational pull puts Earth’s path in a round orbit Revolution- Earth in its orbit around the Sun 1 year

4 Seasons Are caused by the position of Earth’s axis relative to the direction of sunlight Near equator  temperatures mostly same year round Near the poles  large temperature changes Changes in the amount of sunlight are due to the tilt of Earth’s axis

5 Equinox- sunlight shines equally on the northern and southern hemisphere
Solstice- Sunlight is maximum in only one hemisphere Happen around the 21st day of certain months

6 September Equinox: 1/2 the sunlight is in each hemisphere.
December Solstice: Less than ½ of the northern hemisphere is sunlight. Southern hemisphere will be warm March Equinox: 1/2 the sunlight is in each hemisphere. June Solstice: More than ½ of the northern hemisphere is sunlight. Northern hemisphere will be warm

7 On the left side of your notebook…
Do your demonstration of understanding (foldable would be nice  ) Write your 5-7 sentence summary Answer Section 2.1 Review questions 1-6. COMPLETE SENTENCES PLEASE!!! 


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