Planets
Sol
Rocks in Space
Layers of Atmosphere
Solar System
100

The name of this planet comes from a Germanic word for "ground" 

What is Earth?

100

Bands of colored or white light in the atmosphere caused by charged particles from the Sun interacting with Earth's upper atmosphere. We have two types on Earth, the Borealis and Australis.

What is Aurora?

100

A small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.

What is a Meteor?

100

This layer of the atmosphere contains the Ozone Layer

What is the Stratosphere?

100

It takes light approximately this long to travel from the Sun to Earth

What is 8 minutes?

200

This planet's atmosphere causes rains of sulfuric acid

What is Venus?

200

The name for a darker, cooler region on the Sun's photosphere

What is a Sunspot?

200

A small body of loosely packed ice, rock, gas, and cosmic dust that gives off a tail of gas and dust as it passes near the Sun

What is a Comet?

200

This layer lies above the mesopause, and is a region in which temperatures again increase with height.  

What is the Thermosphere?

200

Pluto got demoted from planet to this, since it is not large enough to clear its own path of asteroids.

What is a Dwarf Planet?

300

The Great Red Spot on this planet is wider than the diameter of Earth

What is Jupiter?

300

A storm on the Sun's surface that sends out bursts of radiation and particles

What is a Solar Flare?

300

A small rocky object, greater than 1m in diameter, that orbits the sun

What is an Asteroid?

300

This is the lowest part of the atmosphere - the part we live in

What is the Troposphere?

300

The Asteroid Belt between these two planets contain most of the asteroids in our solar system

What are Mars and Jupiter?

400

The orbit of planets is this shape.

What is an Ellipse

400

The type of reaction that stars use to produce energy

What is Nuclear Fusion?

400

A small, rocky object, smaller than 1m in diameter, which orbits the Sun

What is a meteoroid?

400

This is the middle layer of the atmosphere; the prefix for it actually means "middle"

What is the Mesosphere?

400

This is the name of our galaxy...and the word "galaxy" itself is influenced by this name

What is the Milky Way?

500

The tallest mountain in our solar system, Olympus Mons, is on this planet

What is Mars?

500

The sun is comprised almost entirely of these two elements

What are Hydrogen and Helium?

500

A meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground

What is a Meteorite?

500

This layer contains mainly oxygen and hydrogen atoms, but there are so few of them that they rarely collide 

What is the Exosphere?

500

This is the region of the solar system outside of Neptune's orbit

What is the Kuiper Belt