Planets
Planets 2
Misc 1
Solar System Theories
Solar System Misc.
100

Closet Planet to the Sun?

Mercury

100

This planet is considered Earth's twin...

Venus

100

What causes the moon to shine?

The reflection of light from the sun

100

What are the 2 different models astronomers believed?

Heliocentric and Geocentric

100

Why is Pluto a dwarf planet?

Because it is unable to knock objects out of its orbit.

200
This planet is tilted and has an axis of rotation of 90 degrees.

Uranus

200

Where is the asteroid belt located?

Between Mars and Jupiter

200

What causes the sun to appear to rise and set?

Earth's Rotation
200

What is found at the center of the heliocentric model?

Sun

200

What holds all planets in Space?

Gravity

300

Which planet is heavily cratered?

Mercury

300

Which planet has water that exist in all three phases of matter?

Earth

300

How long does it take Earth to revolve around the Sun?

365 days or 1 year

300

What is found at the center of the geocentric model?

Earth

300

This planet has the lowest density and tons of rings?

Saturn

400

What is the 6th planet?

Saturn

400

This planets surface is made of iron oxide...

Mars

400

What causes the moon to orbit Earth?

The gravity between the Moon and Earth

400

What two astronomers believed in the Geocentric model?

Aristotle and Ptolemy

400

This orbits the sun and is mostly composed of ice.

A comet

500

Put the following planets in order, smallest to largest.

Earth, Jupiter, Mars, Neptune

Mars, Earth, Neptune, Jupiter

500

Earth is mostly composed of what gases?

Nitrogen and Oxygen

500

When the South Pole is tilted toward the Sun, what season is the North Pole experiencing?

Winter

500

What two astronomers believed in the heliocentric model?

Copernicus and Galileo

500

What does Rockets Always Leave Space Icy stand for? Hint: Space Exploration Timeline

First Modern Rockets, Artificial Satellites, Lunar Missions, Space Shuttle, International Space Stations.

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