Definitions
Definitions Part 2
The Planets
The Planets Part 2
Hard Planet Questions
100

What is a terrestrial planet?

A rocky or "Earth-like" planet!

100

What is a superior planet?

A planet that has an orbit farther away from the sun than the earth! 

100

This planet reflects over 75% of the light that hits it! 

Venus! Venus is very bright in the sky because it reflects so much light! 

100

This planet has had a big storm on it since it was discovered almost 300 years ago.

Jupiter!

100

Mercury orbits the sun (faster or slower) than earth. 

Faster! 

200

What is a Jovian planet?

A gas or "Jupiter-like" planet!

200

What is a synchronous orbit?

When one heavenly body orbits around another heavenly body at the same time it takes to rotate on its axis! They look like they are always facing each other! 

200

This plutoid was named by an 11-year-old schoolgirl from England. 

Pluto!

200

This planet appears to be blue because of all the methane in it’s atmosphere

Neptune! 

200

Mercury rotates on its axis (faster or slower) than earth. 

Slower! 

300

What is retrograde rotation?

When a heavenly body spins backwards! 

300

Does our moon count as a satellite?

Yes! It is a heavenly body that orbits another heavenly body (Earth!) 

300

This planet has a high amount of rust in its soil. 

Mercury! 

300

This planet orbits around the sun once every 365 days.

Earth!
300

This planet is the faster spinning planet in the solar system. It rotates every 9 hours and 55 minutes! 

Jupiter! 

400

What is a satellite?

A heavenly body that orbits another heavenly body! 

400

Saturn has a bulge in the middle because it spins (faster or slower) than Earth. 

Faster! It spins so fast it squishes in the middle! 

400

This planet spins on its side! 

Uranus! 

400

This planet was believed to be too hot to have water on it. But, in 1991, a small amount of ice was discovered in very deep craters.

Mars!

400

Saturn has a moon named Titan. What makes Titan different from other moons? 

It has an atmosphere! 

500

What is an inferior planet?

A planet that has an orbit closer to the sun than the earth! 

500

The plutoid Eris is (bigger or smaller) than Pluto.

Bigger! 

500

Galileo thought this planet looked like it had "ears" on it. 

Saturn! 

500

Venus is also know as the __________ and ___________ star.

Morning and evening star! 

500

Neptune has a Great Dark Spot that is believed to be one of what two things?

Either a big storm or a hole in the atmosphere! 

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