They are smaller than a planet made of rock and metal.
What is an asteroid?
100
The only star in the solar system.
What is the sun?
100
The third planet from the Sun. It is the only know planet to have life.
What is Earth?
100
I have visible rings made of rocks, dust, and ice.
What is Saturn?
200
The most abundant type of galaxies found in the universe. A spherical or elongated galaxy with a bright center and very little dust and gas; contain older stars
What is an elliptical galaxy?
200
A body made of dust, ice, and frozen gas that orbits the Sun in an elongated path
What is a comet?
200
A group of stars that form a pattern in the sky.
What is a constellation?
200
A terrestrial planet that is the first planet from the Sun; the smallest planet.
What is Mercury?
200
A gas giant and the eighth planet from the Sun; it is the windiest planet.
What is Neptune?
300
A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
What is a spiral galaxy?
300
Small bodies of rock that orbit the Sun.
What is a meteoroid?
300
A device built to observe distant objects by making them appear closer.
What is a telescope?
300
A terrestrial planet that is the second planet from the Sun; the hottest planet.
What is Venus?
300
A gas giant and the seventh planet from the Sun; it rotates on its side.
What is Uranus?
400
A galaxy that does not fit into any other category; one with an irregular shape.
What is an irregular galaxy?
400
A large group of asteroids that lies between the orbits of Mars and Jupiter
What is the asteroid belt?
400
A building that contains one or more telescope.
What is an observatory?
400
A terrestrial planet and the fourth planet from the Sun; has two moons.
What is Mars?
400
A gas giant and the fifth planet from the Sun; it is the largest planet.
What is Jupiter?
500
The many objects in the Milky Way Galaxy.
What are stars, gas, and dust?
500
A natural satellite, made of rock, that orbits a planet.
What is a moon?
500
A large cloud of dust and gas that can break apart into smaller pieces and form stars.