Earth rotates on a tilted axis and orbits the Sun

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Presentation transcript:

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

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

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

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

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

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

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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