Our Sun
Planets
Our Moon
Asteroids & Meteoroids
History of Astronomy
100
The sun is just an average one.
What is a star?
100
It is the largest planet in our solar system.
What is Jupiter?
100
Our moon affects Earth's oceans by causing these.
What are tides?
100
The 100 mile wide band known as the asteroid belt is located between these two planets.
What are Mars and Jupiter?
100
Ancient people believed this was the center of the universe.
What is Earth?
200
A star does this, but a planet does not.
What is "emit self-generated light?"
200
It is the closest planet to the sun.
What is Mercury?
200
The different areas of our moon lit by sunlight are called this.
What are phases?
200
It's the largest known asteroid.
What is Ceres?
200
This Polish astronomer published a sun-centered theory of the universe.
Who is Copernicus?
300
It is the largest body in our solar system.
What is the sun?
300
This planet is sometimes farther away from the sun than Pluto is.
What is Neptune?
300
Most of them were caused when smaller bodies crashed into the moon's surface.
What are craters?
300
A meteor appears as this when it burns up in the atmosphere.
What is a streak of light?
300
This English scientist's theory of gravity explained why planets orbit the sun as they do.
Who was Sir Isaac Newton?
400
Our sun is in this galaxy.
What is the Milky Way?
400
At one time this was the only planet in the solar system known to have a ring system.
What is Saturn?
400
In spite of their name, these lowland plains have no water.
What are maria?
400
We call a large meteoroid this when it strikes Earth.
What is a meteorite?
400
His laws of planetary motion explained that planets have elliptical orbits.
Who was Kepler?
500
The sun is 93 million miles from this planet.
What is Earth?
500
It's one of two planets in our solar system with no known moons.
What is Mercury or Venus?
500
A lunar eclipse occurs when this happens.
What happens when the moon passes into Earth's shadow?
500
Meteor showers are thought to be the debris of these celestial bodies.
What are comets?
500
The type built by Galileo was a refracting one.
What is a telescope?
M
e
n
u