1. Warm-up Get out your interactive notebook and a pencil.
Turn to page ___ and cut out the moon phase calendar.
Create a tab and label it Astronomy. Think about the following question: What does our solar system consist of?

2. Motion of the Earth

3. Review What does the solar system consist of? 1) Sun 2) Planets
What is at the center of the solar system?
THE SUN!
Heliocentric~ Sun Centered Video
Geocentric~ Earth Centered
1) Sun
2) Planets
3) Asteroids
4) The natural satellites of the planets
5) Comets
6) Interplanetary dust
7) Meteoroids

4. Axis
An imaginary line which runs through both
poles of a planet.

5. Rotation vs. Revolution

6. Rotation of the Earth The Earth is spinning upon a central axis.
The Earth's axis is tipped over about 23.5°
The Earth rotates around once in 24 hours creating day and night.

7. Direction of the Rotation
In which direction does the earth rotate?

8. Revolution of the Earth
The earth revolves around the sun.
The orbit is elliptic.
The Earth's tilt stays constant.
The Earth completes one revolution in 365 days.

9. Rotation vs. Revolution Worksheet