Planets
Dwarf planets
Formation of solar system
Asteroids and comets
Moons
100

Planet closest to the sun

Mercury

100

Dwarf planet shaped like a football

Haumea

100

When was it formed?

4.6 billion years

100

3 types of asteroids

C-type

M-type

S-type

100

naturally-formed objects that orbit planets

moon

200

What are the layers of the earth

The Mantle

Inner core

Outer core

The crust

200

Dwarf planet located in the asteroid belt

Ceres

200

What planets make up the solar system

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

200

What are giant, swirling cloud of gas anddust 

Comets

200

important for _________ planetary

 stabilizing

300

What planet is called earth's "evil twin?"

Venus

300

Which dwarf planet did Jupiter disrupt from becoming a real planet

Ceres

300

The centeral star

The sun

300

What are the 2 different types of comets

Short-period comets

Long-period comets

300

True or false

Moons help with seasonal changes

True

400

What are saturns rings made out of?

 small chucks of ice and rock

400

Which dwarf planet was considered a "planet" the longest

Pluto

400

Where does the Kuiper Belt lie

past Neptunes orbit

400

What are dust particles that stick together which later on built large clumps which grew into rocks that never grew large enough 

Asteroids

400

Do moons come in different colours

No

500

Which 2 planets spin in the opposite direction

Venus and Uranus

500

Which dwarf planet has rings

Haumea

500

Whats the giant, swirling cloud of gas and dust called

The nebula

500

What are M-type asteroids rich in?

Iron and Nickel

500

Which planets don't have moons

Mercury & Venus