In a nearly circular path called an ellipse.
How does Earth Move around the Sun?
Earth's tilt on it's axis combined with it's revolution around the Sun.
What is the most important cause of Earth's seasons?
The Moon's revolution around the Earth.
What is the cause of the Moon's changing phases?
You can see the whole part of the lit up moon.
What is a full moon?
I'm the first planet.
What is Mercury?
The Sun's gravity pulls on Earth.
Why does Earth revolve around the Sun?
Summer
What is the Earth's axis is tilted toward the sun?
the phases when each night a little less of the Moon is revealed.
What are the waning phases?
You can see half of the lit up moon.
What is 1st or 3rd quarter moon?
I'm the only planet with life on it.
What is Earth?
The closed and nearly circular path created by Earth's revolution around the Sun.
What is an orbit?
The Earth's axis is tilted away from the sun.
What is Winter?
The phases that reveal a little more of the Moon each night.
What are the waxing phases?
You can see more than half but not all of the lit up part of the moon.
What is gibbous?
I'm the first gas giant and the largest planet.
24 hours or one day
What is the length of time for one Earth rotation?
During these two days of the year there is and EQUAL amount of daylight and darkness.
What is a fall and spring equinox?
The angle between the Sun, Earth, and Moon.
What causes moon phases?
You can see less than half of the lit up side of the moon.
What is crescent?
I am the last official planet in the solar system.
What is Neptune?
365.24 days or one year
What is the length of time for one Earth revolution around the Sun?
There would be no seasons.
What would happen if the Earth's axis did not tilt?
The sun and moon appear to be the same size.
What is the size and distance different is the same ratio?
The moon is not visible - it is in the sky the same time as the sun.
What is new moon?
I used to be a planet, but now they say I'm a dwarf.
What is Pluto?