Solar System
The center of our solar system
The Sun
Word for the spinning of the Earth
Rotate
When you can see the whole moon
Full
What causes seasons
Tilt of the Earth
The path a planet takes around the Sun
An orbit
When the moon passes between the sun and the earth
Solar eclipse
When you can't see any moon
New Moon
When days are the longest
Summer
The force that pulls planets towards the sun
Gravity
Imaginary line through the center (north to south)
Axis
The changing shape of the moon
Phases
When the sun is lower in the sky
Winter
The force that keeps objects in orbit
Inertia (Centrifugal force)
Imaginary line around the middle (east to west)
Equator
Another word for moon
Lunar
The top and bottom half of Earth
Hemispheres
This increases gravity's force
Mass or Distance
Another word for orbit
Revolve
When you can only see half the moon
Quarter Moon
Where there is less change in seasons
Equator