Galaxies of the Universe
Stars
Inner Planets
Dwarf Planets
Comets, Asteroids and Meteoroids
Gravity
Galilean Moons
Outer Planets
100

A system of millions to billions of stars, dust, and gas clouds.

What is a galaxy?

100

A large sphere of super hot plasma that is able to give off light.

What is a star?

100

Planet with the largest volcano.

What is Mars?

100

This dwarf planet is named after the Hawaiian goddess of fertility.

What is a Haumea?

100

This is made of rock and ice and orbits the sun.

What is a comet?

100

This is the force of attraction between one object of mass and another object of mass.

What is Gravity?

100

This is the moon of Jupiter that is the farthest away and has lots of craters.

What is Callisto?

100

This outer planet is the largest and has a great red spot that is actually a storm.

What is Jupiter?

200

This is where stars are born.

What is a nebula?

200

The super-bright explosion of a dying massive star.

What is a supernova?

200

The smallest planet.

What is Mercury?

200

This dwarf planet is named for the Rapa Nui god of fertility.

What is Make Make?

200

This is what we call a meteor that gets burned up as it enters Earth's atmosphere.

What is a shooting star?

200

As distance increases, gravitational force does this.

What is decreases?

200

The very bright moon of Jupiter that has an icy surface and a possible liquid ocean underneath.

What is Europa?

200

This is an ice giant that is blue green.

What is Uranus?

300

This is the distance that light can travel in one year.

What is a light year?

300

This is the process that happens in the core and creates the energy for the sun.

What is Nuclear Fusion?

300

The planet that is in the "Goldilocks" zone

What is Earth?

300

This is the only dwarf planet found in the Asteroid Belt.

What is Ceres?

300

This is a massive chunk of rock that orbits the sun.

What is an asteroid?

300

As mass increases, gravitational force does this.

What is increases?

300

This moon is the largest in the solar system.

What is Ganymede?

300

This planet has rings and a storm called the Great Dark Spot ( although it is no longer there)

What is Neptune?

400

Scientists believe that through indirect observation of the Kuiper Belt and math models there is the existence of this.

What is a ninth planet?

400

In the sun, as in most stars, this element fuses together to make this new element.

What are Hydrogen and Helium?

400

The hottest planet has this element in its atmosphere creating a greenhouse effect.

What is Venus?

400

Most dwarf planets are located here.

What is the Kuiper Belt?

400

This is what scientists believe caused the extinction of the dinosaurs.

What is an asteroid?

400

This is the force that causes objects to be shaped like a sphere.

What is Gravity?

400

This moon is orange and full of volcanic activity.

What is IO?

400

This planet has the most rings.

What is Saturn?

500

Galaxies are categorized by shape and fall into one of these three shapes.

What are Spiral, Elliptical, and Irregular.

500

This is the area of the solar system that is under the gravitational influence of the sun.

What is the heliosphere?

500

This inner planet has the weakest magnetic field.

What is Venus?

500

This dwarf planet is larger than Pluto and named after the goddess of discord.

What is Eris?

500

Some comets have long periods lasting up to thousands of years and usually come from the outer most region of our galaxy called this.

What is the Ort Cloud?

500

This is the speed a satellite needs to travel in order to orbit the Earth without falling back down.

What is 17,000 miles per hour?

500

This is the largest moon on Saturn, is thought to have oceans much like Earth's and may have life.

What is Titan?

500

Two of the outer planets are called this and the other two are called this.

What is gas giants and ice giants?