1. What causes day and night?
How does a calendar work?
(days, months, year?)
What is a leap year?
What causes the seasons?
How would the seasons be different if Earth were not tilted on its axis?
What are solstices and equinoxes?
How are they related to the seasons?

2. What do we know?

3. Earth in Space

4. What are the 2 majors motions of Earth as it travels through space?
Rotation
Revolution (orbit)

5. How Earth Moves Earth moves through space in two major ways:
Rotation Revolution

6. Near the equator, sunlight strikes Earth’s surface more directly and is less spread out than near the poles.

7. The Seasons on Earth
Earth has seasons because it is tilted as it revolves around the sun.

8. The Seasons on Earth
The height of the sun above the horizon varies with the season.

9. Vocabulary – “Earth in Space”
Rotation:
Axis:
Revolution:
Orbit:
Solstice:
Equinox: