Earth
This causes the Earth's seasons.
The revolution and tilt of the Earth
The word "solar" refers to this object.
The Sun
It takes this long for the moon to revolve completely around the Earth.
Around 29 days
This keeps the Earth and moon in their orbits.
Gravity
This word describes the Earth spinning continuously.
Rotating
The shape of the Earth
A sphere
The sun is a big fiery ball of gas called this.
A Star
Solar refers to the sun. This term refers to the moon.
Lunar
It takes this long for the Earth to complete on full rotation.
24 hours
This imaginary line goes from the North Pole to the South Pole of the Earth.
The Axis
The Earth takes this long to revolve around the sun.
What is 365 days
The sun rises in this direction.
East
During this phase of the moon, we can see no light from the moon.
New moon
This object is used to study far away objects in the sky.
Telescope
This term is used to describe the phase of the moon when we see all of the lit side.
Full Moon
When it is winter in North America, it is this in Australia.
Summer
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
Solar Eclipse
During this process, the earth is in between the sun and moon, therefore we won't be able to see the moon for a while.
Lunar Eclipse
The sun appears higher in the sky during this time of year because of the tilt of the earth.
Summer
As we see less and less of the lit part of the moon, we say that it is doing this.
Waning
The imaginary line horizontally around the middle of the Earth.
The equator
This is how the sun's rays strike the Earth in the summer.
Directly
The moon gravitational force affects this part of the Earth, changing it daily on our beaches.
Ocean tides
This takes place every 4 years because it takes the Earth 365 and 1/4 days to revolve around the sun.
Leap Year
What is it called when the moon and sun line up perfectly?
Totality