The Solar System
The Planets
Motion
The Sun
Small Bodies
100

The galaxy our solar system is in

What is The Milky way

100

What the planets orbit

What is the sun?

100

The imaginary line the Earth rotates on.

What is an axis?

100

The center of the sun.

What is the core?

100

Dirty space snowball made of ice and dust.

What is a comet?

200

The generational star level of our sun.

What is third generational?

200

The two types/categories of planets in our solar system. 

What is terrestrial and gas giants?

200

The path a planet follows as it travels around the sun.

What is an orbit?

200
The time it takes the sun to revolve around The Milky Way. (225-250 million years)

What is a cosmic year? 

200

Nickname for a meteor.

What is a shooting star?

300

How long ago our solar system began forming.

What is 5 billion years (or 4.6 billion years)

300

The category of planets that has many moons. 

What is a gas planet?

300

Gives the moon the illusion of not spinning (rotating) when it actually is.

What is Synchronous Rotation?

300

A stream of charged particles produced by the Corona.

What is solar wind?

300

Space between Mars and Jupiter where asteroids mostly orbit our sun.

What is the asteroid belt?

400

The most accepted theory of how our solar system was formed.

What is Nebular Hypothesis? 

400

A planet with a high density and a low mass. 

What is Earth? (also accepted: Terrestrial planet, Mercury, Venus, Mars)

400

Theory that stated all celestial bodies orbited the Earth.

What is Ptolemy's theory? (Geocentric theory also accepted 

400

The joining of hydrogen atoms to form helium.

What is nuclear fusion?

400

Rocky leftovers from the formation of our planets.

What is an asteroid?

500

The process of how the planets in our solar system formed.

What is accretion?

500

Must have mostly cleared it's orbital debris. 

What is a planet?

500

Length of time it takes Earth to revolve around the sun.

What is 365 days? (365.25 also accepted)

500

The layer of the sun's atmosphere that has a reddish glow?

What is chromosphere?

500

Broken off crumbs of comets. (Tiny asteroids)

What is a meteoroid?