Seasons

1. It is winter when a hemisphere is tilted __________ from the sun.
4. If Earth's axis was straight up and down, we would have different weather, but we would not have _________.
7. The Earth's axis has a ________ of about 23.5 degrees.
8. The top half of the Earth is called the Northern _____________.
10. The Earth rotates, or spins in place, but it also __________, or orbits, around the Sun.
12. Earth's ____________ causes day and night. (Rotation or revolution?)
13. This is the name for the path that the Earth follows as it revolves around the Sun.

2. The imaginary pole that goes through the middle of the Earth from North to South is called Earth's ________.
3. It takes 365 days, or one ________ for the Earth to make one complete revolution around the Sun.
5. When it is summer in the Northern Hemisphere, it is winter in the _________________ Hemisphere.
6. If the Earth didn't rotate, we wouldn't have _________ or nights.
9. Like the Earth and the Sun, ____________ orbit around the nucleus in an atom.
10. The Earth ___________ once every 24 hours.
11. It is summer when a hemisphere is tilted _________ the sun.