Space

Asteroids, Comets, and Meteors

100

I live in a belt between Mars and Jupiter.

Asteroids

200

I am a large object that causes a crater when I hit Earth's surface.

Meteorite 

300

When I am closer to the sun, you can see my tail or tails.

Comet

400

I am a mixture of frozen gases, ice, dust, and rock.

Comet

500

When I burn up in Earth's atmosphere, I am sometimes called a shooting star.

Meteor

Planets

100

We are the four closest planets to the sun, often called the terrestrial, or rocky, planets.

Inner Planets

200

We are the four planets after Mars, often called the gas giants.

Outer Planets

300

I am covered in volcanoes and I'm the hottest planet.

Venus

400

I have lots of storms, I even have one that's been blowing for over 400 years.

Jupiter

500

I am tilted so far, that one of my poles faces the sun during part of my orbit.

Uranus

Galaxies

100

I contain billions of stars, dust, and gas, and I am held together by gravity.

Galaxy

200

I am the galaxy you live in.

The Milky Way Galaxy

300

I am shaped like a disk and contain gas, dust, and young stars.

Spiral Galaxy

400

I am oddly shaped and contain lots of gas and dust.

Irregular Galaxy

500

I do not have an internal structure and contain little or no gas and dust.

Elliptical Galaxy

Stars

100

I am a sphere of hot gases that gives off light and heat.

Star

200

I am the closest star too the Earth.

The Sun

300

I am a huge cloud of gases and dust; stars form out of me.

Nebula

400

I am very dense and small; I shine with a cooler white light.

White dwarf

500

I am an exploding star; I shine brightly and then fade away.

Supernova

Mixed

100

I am the distance light travels in one year.

Light-year

200

I am the planet most like Earth.

Mars

300

I record radio waves given off by objects in space.

Radio Telescope

400

I am an early astronomer who observed many things that no one had seen before.

Galileo Galilei

500

I am the inner shadow from the moon during a solar eclipse.

Umbra