Gas Giants
Inner Planets
Weather
Astronomy
Earth
100

What is Jupiter mostly made out of?

Hydrogen and Helium

100

How many inner planets are there?

4

100

What is the first and most serious danger of a tornado?

Wind

100

Who popularized the idea that the universe is geo-centric ("earth-centered")?

Aristotle

100

How many moons does the Earth have?

1
200

How many Gas Giants are there?

4
200

Which planet is closest to the sun?

Mercury

200

What is the most powerful type of thunderstorm?

supercell

200

What is another name for "sun-centered"?

heliocentric

200

How long does it take for the moon to orbit Earth?

29 days, 12 hours, and 44 minutes


300

How many rings does Saturn have?

7

300

Which planet is sometimes referred to as "Earth's Twin"?

Venus

300

With what type of cloud does a thunderstorm begin?

Cumulus

300

Who proposed that the planets orbit the sun and not the earth?

Copernicus

300

What is Earth's distance from the Sun?

93,000,000 miles

400

What is Uranus made out of?

Hydrogen, Helium, Ammonia, and Methane (Any one of these counts)

400

Which planet is considered the "Red Planet"?

Mars

400

What is an abrupt discharge of electricity through the air that produces a quick flash of bright light?

Lightning

400

Who built the first telescope?

Galileo Galilei

400

What percent of Earth is water?

71% ( 70% is also accepted)

500

Which planet was discovered mathematically before it was seen?

Neptune

500

What is the smallest planet?

Mercury

500

What is a long line of thunderstorms found along a cold front?

Squall Line

500

Who developed the three laws of planetary motion?

Kepler

M
e
n
u