Planets
Moons
Asteroids
Comets
Meteors
100
365 Earth Days
How long does it take for Earth to make one complete orbit around the sun?
100
About 16 pounds.
How much does a 100-pound person weigh on the moon?
100
Metal.
Asteroids are mainly made of rock and what other thing?
100
A dirty snowball.
What is another name for a comet?
100
At night.
More than half of meteors are seen when?
200
Venus.
What is the hottest planet?
200
28 days.
Earth's moon completes an orbit once every how many days?
200
In the asteroid belt between Mars and Jupiter.
Where are asteroids mainly found?
200
Ice, rock, and dust.
What are comets made of?
200
About the size of a pebble.
How big are most meteors?
300
Mars.
What planet has the highest mountains?
300
Saturn's biggest moon, Titian.
Which of Saturn's moons has the densest atmosphere?
300
Elliptical, like the planets' orbits.
What shape orbit do asteroids have?
300
A coma.
What is a comet's atmosphere called?
300
In the mesosphere.
Where do meteors usually occur?
400
Saturn.
Which planet in our solar system has the lowest density ?
400
None, the only satellites are the man-made ones Earth has sent up to take pictures of Venus.
How many natural satellites does Venus have?
400
C-type S-type M-type
What are the three classifications of asteroids (based on color)?
400
Every 75 to 76 years.
How often is Halley's comet visible?
400
A stone meteor.
What is the most common meteor?
500
Mars.
Which planet has the most ice covering it?
500
63.
How many moons does Jupiter have?
500
Ceres (590 miles in diameter).
What is name of the largest asteroid?
500
Kuiper Belt and the Oort Cloud.
Name the two regions where comets are mainly found.
500
A fireball.
What is a comet called when it produces enough light to cast a shadow on Earth?
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