What is a Star?

What color is the hottest color of star?

• Blue
• red
• purple
• Black

What is the color of the coolest stars?

• blue
• Yellow
• Red
• Orange

Our galaxy is called the

• Earth Nebula
• The Hubble Galaxy
• The Milky Way
• The Snickers

As a whole, Giants are considered hotter than White Dwarfs.

• True
• False

H-R diagrams measure both a star's ______ and _______. 

• mass and color
• luminosity and surface tempurature
• brightness and composition
• location and type

A huge ball of very hot gas is a 

• galaxy
• comet
• planet
• star

Put the stars in order from hottest to coolest.

• Blue, Red, White, Yellow, Orange, 
• Red, White, Yellow, Orange, Blue
• Blue, White, Yellow, Red, Orange
• Blue, White, Yellow, Orange, Red

Nuclear fusion is...

• When two or more elements join together to make a heavier element.
• When two elements separate and form heavier elements.
• When two elements disappear
• that thing that happened to the Hulk

The process that all stars perform is called?

• nuclear fission
• nuclear fusion
• mass expulsion
• star tectonic motion

After the Nebula stage is the

• Protostar stage
• Pickle Star Stage
• Prototransformer stage
• Blackhole stage