Chapter 3- Space

A group of stars, gas, and dust including planets that orbit the stars.

• solar system
• galaxy
• universe
• planet

How do scientists classify galaxies?

• by size
• by shape
• by temperature
• by number of stars

What is the name of the galaxy that we live in?

• Butterfinger
• Solar System
• Milky Way
• Snickers

Which characteristic separates the outer planets from the inner planets?

• The outer planets have no atmospheres
• The outer planets are made mostly of gas
• The outer planets have smaller diameters
• The outer planets orbit in a different direction

What do Mercury, Venus and Mars have in common?

• They are all dwarf planets
• They all don't have any moons
• They are all inner planets
• They orbit something other than the Sun

Planets have mass and rotate on their axis.  What is another characteristic of a planet?

• made mostly of gass
• has a rocky surface
• revolves around a star
• is a satellite of another planet

What is an object in space that is made mostly of ice?

• planet
• dwarf planet
• asteroid
• comet

Moons revolve around....

• stars
• planets
• dwarf planets
• asteroids

Which planet comes next....Mercury, Venus, _____________.

• Jupiter
• Saturn
• Earth
• Uranus

What is a group of stars that form patterns, which look like people or animals?

• nebula
• galaxy
• constellation
• dwarf planet