Imaginary line that goes through the center of a planet

Small natural objects that revolve around other objects. Many planets have moons.

Large, round body that revolves around a star. They rotate/spin on an axis

Small, rocky planets that orbit closest to the sun including Mercury, Venus, Earth, & Mars

Second planet from the sun, Hottest planet

The largest planet, 5th from the sun

The smallest planet and closest planet to the sun

3rd planet from the sun

Known as the "Red Planet" 4th planet from the sun

6th planet from the Sun, has thousands of rings

the 8th planet from the sun--very windy

Which of the following is NOT an inner planet

Which of the following is NOT an outer planet

Rock and iron objects that orbit the sun

Chunks of rock or dust from space that often break off of asteroids

Chunks of frozen gases, rocks and dust with a tail

The study of objects in space such as moons, planets, stars and other objects in the sky

A scientist who studies astronomy; the moons, planets, stars and other objects in the sky

Hot, glowing balls of gas that produce heat and light

All of space and everything in it- everything that exists

gravity causes gas and dust particle found in space to pull and squeeze together until heat and light are released

Billions of stars, objects that orbit the stars along with gas and dust- held together by gravity

The galaxy containing our Solar System

young stars - a galaxy whose arms curve outward in a pinwheel pattern

galaxy with two or more distinct arms

A galaxy that does not have a regular shape

Brightest at the center - A galaxy shaped like a round or flattened ball, generally containing only old stars

Saying to help us remember the order of the planets from closest to the sun to farthest away

The four planets closest to the sun- known as the rocky planets

The four planets furthest from the sun- known as the Gas Giants

How long does the moon take to rotate around the Earth?

Huge balls of hot, glowing gases that produce their own heat and light

nearly round bodies that are far away and hard to study- Pluto is considered one

Galaxies _________ stand still.

Rotates on its side it is the 7th planet in our solar system