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Day and night. Day and Night. Horizon : an imaginary line where the land seems to meet the sky. Day and night. How does the Sun’s position in the sky change during the day? Sunrise : The Sun rises on the eastern horizon casting long shadows. Day and Night.

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Day and night1
Day and Night

  • Horizon: an imaginary line where the land seems to meet the sky.


Day and night2
Day and night

  • How does the Sun’s position in the sky change during the day?

  • Sunrise: The Sun rises on the eastern horizon casting long shadows.


Day and night3
Day and Night

  • Midday: At midday the sun appears high overhead casting short shadows.


Day and night4
Day and night

  • Sunset: The Sun sets on the western horizon casting long shadows.


Day and night5
Day and Night

  • Rotate: to turn around on an axis or center point.


Day and night6
Day and Night

  • What causes day and night?

  • As the Earth rotates from west to east, the side that faces the Sun experiences day.



Day and night7
Day and Night

  • How long does it take for the Earth to make 1 day/night rotation?

  • It takes 24 hours or one day for Earth to make 1 day/night rotation.


Day and night8
Day and Night

Quick Check

  • Earth rotates from ___________ to _____________.

  • The Sun seems to move across the sky from _________ to __________.

  • One day on Earth equals _____________.


Day and night9
Day and Night

  • Axis: is a real or imaginary line through the center of a spinning object.


Day and night10
Day and Night

  • Sphere: an object shaped like a ball.


Day and night11
Day and Night

  • Is the Earth’s axis tilted or straight up and down?

  • The Earth’s axis is tilted 23.5 degrees and runs through the center of the Earth from the North Pole to the South Pole.


Day and night12
Day and Night

  • The Earth is shaped like a ___________.

  • The Earth’s axis runs from the __________ to the __________.

  • The Earth’s ________ is tilted ____________.