Inner or Outer
Celestial Objects
Vocabulary
Stars
Pluto and the Moon
100

This planet is always sideways and has 13 rings and 27 moons

What is an outer planet (Uranus)?

100

This is a ball of ice and dirt that has a "tail"

What is a comet?

100

The sun and all the other objects that move around it

What is the Solar System?

100

The largest star in our Solar System

What is the sun?

100

Pluto is now classified as this

What is a dwarf planet?

200

This planet is about the same size as the Earth

What is an inner planet (Venus)?

200

These are large rocks that revolve around the sun but are too small to be planets

What are asteroids?

200

A force that pulls an object toward each other

What is gravity?

200

What the Sun is composed of

What are gases?

200

Pluto's orbit overlaps this planet's every 248 years

What is Neptune?

300

This planet is sometimes called "The Red Planet"

What is an inner planet (Mars)?

300

A small rocky or metallic body orbiting the sun

What is a meteor?

300

Turning all the way around

What is a rotation?

300

The size of our Sun

What is medium sized?

300

These are the two of three conditions that make Pluto once considered a planet

What is it's spherical shaped and it orbits the sun?

400

This planet is more than double the size of all the other planets combined

What is an outer planet (Jupiter)?

400

A meteor that has hit the Earth's surface

What is a meteorite?

400

The path an object takes

What is an orbit?

400

The color of our Sun

What is yellow?

400

The number of days for the moon to orbit the Earth

What is about 29 1/2 days (30 days)?

500

This planet is composed of hydrogen, helium, and methane

What is an outer planet (Saturn)?

500

Where most asteroids can be found

What is the asteroid belt?

500

The mixture of gases that surround a planet

What is atmosphere?

500

The next nearest star to the Earth

What is Alpha Centauri?

500

The moon's light comes from this source

What is the Sun?