PLANETS
STARS
NEBULA'S
SOLAR SYSTEM
SPACE MYSTERIES
100
This planet is known as the “Red Planet.”
Mars
100
This giant glowing ball in the sky is our closest star.
Sun
100
A nebula is mostly made of dust and this gas.
Hydrogen
100
These smaller icy objects orbit the Sun and have glowing tails when close to it.
Comets
100
This is the name for anything that is “a huge collection of stars, dust, and gas.”
Galaxy
200
This planet is the biggest in our solar system.
Jupiter
200
Stars are mostly made of this gas that begins with “H.”
Hydrogen
200
New stars are born inside these giant space clouds.
Nebula
200
This belt of rocks orbits between Mars and Jupiter.
Asteroid Belt
200
This is the galaxy we live in.
Milky Way
300
This planet is closest to the Sun.
Mercury
300
At night, you can see these tiny lights twinkling in the sky.
Stars
300
A nebula is often called a “_____ nursery” because baby stars form there.
Star Nursery
300
This now dwarf planet was formerly known as the 9th planet in our solar system.
Pluto
300
This mysterious region of space has gravity so strong that not even light can escape.
Black Hole
400
This planet is famous for its rings.
Saturn
400
When a star runs out of fuel, it can explode in a big, bright blast called this.
Supernova
400
Nebulas are known for being very bright and _____ in photos. 
Colorful
400
Jupiter, Saturn, Uranus, and Neptune are called this type of planet.
Gas Giants
400
Scientists listen for signals from these possible life forms beyond Earth.
Aliens
500
This is the only planet known to support life.
Earth
500
A group of stars forming an imaginary pattern or figure in the sky.
Constellation
500
Some nebulas look like giant human _____ in space, especially the Helix Nebula.
Eyes (or iris)
500
In space, you can’t hear sounds because there is none of this for sound to travel through.
Air
500
Jupiter has the number of moons equal to this equation. solve.
8⋅12−(3⋅10)+7=?
95