Seasons

rotation

The spinning of Earth on its axis

The current tilt of the Earth on it's axis is ....

23.5 degrees

Why are we able to see the moon?

The sun's light reflects off the moon

revolution

The movement of Earth around the sun

fall

Earth is not tilted toward or away from the Sun. This season comes after summer.

summer

the Earth is tilted toward the Sun resulting in more daylight and higher temperatures

winter

the Earth is tilted away from the Sun resulting in less daylight and lower temperatures

spring

Earth is not tilted toward or away from the Sun. This season comes after winter.

A year

the time required for the Earth to orbit/revolve once around the sun

Amount of time Earth makes one rotation

24 hours

These 2 things cause seasons

Revolution and tilt

The equator

receives the same amount of sunlight throughout the year no matter the tilt

winter solstice date

December 21

fall equinox date

September 22

shortest day of the year

winter solstice

Spring Equinox

March 20

12 hours of light and dark

equinox

Summer Solstice

June 21