Earth’s Tilt and Seasons - Petal School District

Earth's Tilt and

Seasons

Axis:

imaginary line that passes through Earth's center and the North & South Poles

Earth's axis tilt = 23.5?

? causes Earth's seasons ? causes `length' of day to change

throughout the year

23.5?

Plane of orbit

23.5?

Rotation:

Earth's spinning on its axis ? causes night & day ? Earth rotates every 24 hours

Revolution:

movement of one object around another

? Earth revolves around the sun every 365.25 days

Orbit:

an object's path as it revolves around another object

? Earth's orbit around the sun is slightly elliptical, not perfectly circular

? When we are tilted toward the sun, we have summer.

? When we are tilted away from the sun, we have winter

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