Earth Sun and Moon

The Earth, Moon and Sun Review

Day vs. Night

• The Earth rotates on its axis as it revolves around the Sun.

•  It takes approximately 24 hours, a day, for a complete rotation to occur.

• This counterclockwise motion occurs from west to east, causing the Sun to appear to rise in the east and set in the west. 

Multiple Choice

The counterclockwise motion of the Earth's rotation from west to east causes the Sun to appear to rise in the ____________.

• west and set in the east.

• east and set in the west.

One Year

• While the Earth rotates on its axis, it is also revolving around the Sun. 

•  It takes 365 ¼ days, a year, for this motion/orbit to occur.

• ​The Earth revolves around the Sun in an elliptical orbit.

Multiple Choice

The Earth rotates on its axis at 23.5 degrees it _ around the sun.

• revolves

• evolves

• transports

Multiple Choice

​The Earth revolves around the Sun in a(n) _______ orbit.

• rectangular

• circular

• elliptical

VIDEO TIME

Let's (Re)Watch this Crash Course Video on the Earth's Rotation and Revolution now that we have a little more understanding of what is happening on our planet.

Fill in the Blanks

What looks to us to be the motion of the Sun in the sky, is really caused by the motion of the

?

VIDEO TIME

We are going to watch a video to help us further understand why we have the four different seasons.

Wait, what?

A common misconception many people have is that the seasons are caused by the distance of the Earth from the Sun. THIS IS NOT TRUE. Because Earth's orbit around the Sun is slightly elliptical, Earth is actually slightly closer to the Sun in the winter than it is in the summer for us in the Northern Hemisphere.

What's the Season?

In this example, what season is the Southern Hemisphere in? (you select your response on next slide)

Multiple Choice

In the example, what season is the Southern Hemisphere in?

• Fall

• Winter

• Spring

• Summer

Open Ended

EXIT TICKET:

1. How does the rotation of Earth cause day and night?

2. Why are there not always 12 hours of day light and 12 hours of dark everywhere in the world each day?

EXTRA CREDIT

3. What causes the seasons?