Movement
Planets
Seasons
Space Debris
Miscellaneous
Moon Phases
100
The Earth's orbit around the sun lasts this long.
What is one year (or 365 1/4 days)?
100
Eight
What is the number of planets in our solar system?
100
Without this, the Earth would not experience seasons.
What is the tilt of Earth's axis?
100
This object orbits the sun and has an icy tail.
What is a comet?
100
This force keeps the planets and moons in their orbits.
What is gravity?
100

The moon is almost back to its New phase. In an illustration, everything would be shaded in but a tiny crescent on the left.

What is WANING CRESENT?
200
How long does it take the Earth to make one complete rotation on its axis?
What is one day or 24 hours?
200
Mercury, Venus, Earth and Mars
What are the inner planets?
200
When part of the Earth is tilted closer to the sun, that part of the world experiences this season.
What is summer?
200
This rocky object is larger than most other types of space debris.
What is an asteroid?
200
The ordinal position Earth is in when compared to the sun.
What is 3rd from the sun?
200

The moon is facing the same way as the sun, so it looks dark. In an illustration, the entire thing would be shaded.

What is a NEW MOON?
300
The effect of the Earth rotating on its axis.
What causes day and night?
300
Jupiter, Saturn, Uranus, and Neptune
What are the outer planets?
300
When part of the Earth is tilted away from the sun, that part of the world experiences this season.
What is winter?
300
This rocky object is smaller than an asteroid.
What is a meteoroid?
300
This explains why the stars we see at night seem so small, even though they are much larger than our sun.
What is the stars are farther away than our sun?
300

The moon is now 1/4 of the way around the Earth, and we can see the right half of it. In an illustration, the left half would be shaded.


What is a quarter moon?
400
What is the scientific word for Earth's orbit around the sun?
What is "revolution"?
400
A planet that is smaller than a regular planet.
What is a dwarf planet?
400
During winter, that part of the Earth receives this type of sunlight.
What is indirect rays of sunlight?
400
This space object enters the Earth's atmosphere.
What is a meteorite?
400
The main difference between the composition of the inner planets and the outer planets.
What is the inner planets are solid and the outer planets are gas?
400

The moon appears almost full. In an illustration, a  crescent on the left would be shaded. 


What is WAXING GIBBOUS?
500
The number of orbits Juan has experienced in his lifetime if he is 11 years old.
What is 11?
500
Only the outer planets have this unique feature.
What is rings?
500
If the northern hemisphere is experiencing winter, the southern hemisphere is experiencing this season.
What is summer?
500
This is the galaxy in which our solar system resides.
What is the Milky Way?
500
Most of the comets in our solar system originate from this place.
What is the Kuiper Belt?
500
We can see the entire side of the moon.
What is a FULL MOON?
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