ACT Preparation / Unit 22 ACT 2125 short lesson, about 20 seconds
The Seasons
Captions available
The idea
Earth's seasons come from the tilt of its axis, about 23.5 degrees. In June the Northern Hemisphere leans toward the sun, with longer days and more direct sunlight, and has summer.
In practice
When it is summer in the north, the Southern Hemisphere leans away and has winter.
Where people slip
Seasons do not come from Earth's changing distance from the sun.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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