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Focused Study: Star Color & Letter Classification

Total questions: 12

Worksheet time: 8mins

Name
Class
Date
1.

The color of a star tells us its

a)

Temperature

b)

Magnitude

c)

Size

d)

Age

2.

Very hot stars are what color?

a)

Red

b)

Orange

c)

Yellow

d)

Blue

3.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
4.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
5.
Put the stars in order from hottest to coolest.
a)
Blue, Red, White, Yellow, Orange, 
b)
Red, White, Yellow, Orange, Blue
c)
Blue, White, Yellow, Red, Orange
d)
Blue, White, Yellow, Orange, Red
6.

A scientist discovers a new star. It is blue-white and is about 20,000 K. Which star is it most similar to?

a)

Sun

b)

Rigel

c)

Vega

d)

Canopus

7.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
8.

Put the stars in order from hottest to coolest.

a)

Blue, White, Yellow, Orange, Red

b)

Red, Orange, Yellow, White, Blue

c)

Red, Orange, Yellow, Blue, White

d)

Red, Yellow, Orange, White, Blue

9.

The smallest stars (under normal conditions) have this letter classification

a)

A

b)

G

c)

M

d)

O

10.

Our sun is a "medium type" star and is classified by the letter :

a)

A

b)

G

c)

M

d)

O

11.

The brightest stars (under normal conditions) which are can be 50,000 times brighter than the sun are classified with the letter

a)

A

b)

G

c)

M

d)

O

12.

"M-type" stars are classified as the coolest stars and are the color :

a)

red

b)

yellow

c)

white

d)

blue