Earth's Rotation (5.8C)

The student is expected to demonstrate that Earth rotates on its axis once approximately every 24 hours causing the day/night cycle and the apparent movement of the Sun across the sky.

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Vocabulary: 

Rotation: A 24-hour period, or, the time it takes the Earth to make one complete rotation on its axis

Axis: A line, real or imaginary, around which something spins

Day: The time during rotation when the Earth faces the Sun and it is lighted; this rotation gives the false appearance that the Sun travels from east to west across the sky

Night: The time during its rotation when the Earth faces away from the Sun and it is dark; this rotation gives the false appearance that stars move across the sky

Compass: Instrument that uses a small magnet to show which direction is North (N)

Sundial: Instrument that measures the time of day by using the position of the Sun

Shadow: A dark area caused when an object blocks light falling on a surface

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