The mysterious, invisible force that causes people in Australia to think they are right side up - even though they are upside down compared to us.
What is gravity?
100
It is the star that all of the planets, comets and asteroids orbit around in our solar system .
What is the Sun?
100
The name of the moon phase that looks like a finger nail clipping.
What is crescent?
100
The season in the northern hemisphere when the north pole is tilted toward the Sun.
What is Summer?
100
The planet that is farther from the Sun than Ceres, but closer than Saturn.
What is Jupiter?
200
It is the motion of a body spinning on its own axis.
What is rotation?
200
A heavenly body that orbits the Sun, and is large enough to have cleared its orbit of other objects.
What is a planet?
200
What the moon phase is called when more than half the face is lit, but less than all.
What is gibbous?
200
The season in the Southern Hemisphere when the North Pole is tilted toward the Sun.
What is Winter?
200
The planet that orbits the Sun in less than 100 days.
What is Mercury?
300
The word used to count the number of times something goes around.
What is revolution?
300
A heavenly body that orbits the sun, is generally rocky or metalic, can range in size from a speck of dust to 600 miles in diameter, are mostly found between the orbits of Mars and Jupiter.
What is an asteroid?
300
The word that describes the change in the of the moon as it gets larger each night.
What is waxing?
300
The name of the time when the length of day and night are equal all over the Earth.
What is equinox?
300
The gas giant whose rings can be seen easily from Earth.
What is Saturn?
400
it is the imaginary line that an object spins around when it rotates.
What is an axis?
400
This celestial body spends most of the time in its orbit out beyond the gas giants, then occasionally travels closer to the Sun, often sporting a tail.
What is a comet?
400
The phase of the moon when only the dark side faces the Earth.
What is New Moon?
400
The name of the time when the axis of the Earth is pointed directly toward or directly away from the Sun.
What is Solstice?
400
The farthest major planet from the Sun.
What is Neptune?
500
The movement or path of an object as it goes around another object.
What is an orbit?
500
This celestial body type is large enough for its own gravity to make it pretty spherical, but not massive enough to clear its orbit of other celestial bodies.
What is a dwarf planet?
500
The phase of the moon that causes a neap tide.
What is quarter moon or half moon?
500
The word that describes how the Earth's axis is not straight up and down with respect to the plane of its orbit.