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Worksheets

Earth & Space

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Force that holds us on Earth and keeps the planets revolving around the sun.

a)

Gravity

b)

Kinetic Energy

c)

Friction

d)

I don't know.

2.

What does Earth rotate around?

a)

an axis

b)

the sun

c)

the moon

d)

stars

3.

Why does the moon appear bigger than the planets and stars?

a)

The lack of atmosphere on the moon makes it look bigger.

b)

In reality, the moon is much bigger than the planets and stars.

c)

The planets and stars are farther away.

d)

The moon's gravity makes it look bigger.

4.
As the earth rotates on its axis, the constellations and stars in them appear to _________.  
a)
move across the sky
b)
stand still in the sky
c)
move around each other
d)
rotate
5.
People in the Northern Hemisphere do see the same constellations as the people in the Southern Hemisphere.
a)
True
b)
False
6.
Polaris always points
a)
East 
b)
West
c)
North
d)
South
7.
All stars are the same color and same size.
a)
True
b)
False
8.

Why does Polaris not seem to move during the night?

a)

Because it is located directly above the North Pole

b)

Because it is fixed in the sky

c)

Because Ursa Minor does not move

d)

Because it revolves around the Sun with Earth

9.

What is the biggest kind of star in a galaxy called?

a)

blue giant star

b)

the sun

c)

super giant star

d)

red dwarf star

10.

What are the three colors that stars can be?

a)

pink, red, and blue

b)

blue, yellow, and orange

c)

blue, yellow, and red

d)

purple, black, and gray

11.
Which is the correct order of stars from COOLEST to HOTTEST?
a)
blue, white, yellow, orange, red
b)
red, yellow, blue, white, orange
c)
red, white, yellow, orange, blue
d)
red, orange, yellow, white, blue
12.
How would you write 4.3756 x 10in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
13.
Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.
a)
True
b)
False
14.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
15.

Consider the color of the sun. Based on this color, what is the sun's approximate surface temperature?

a)

10,000-30,000

b)

6000-7500

c)

30000-60000

d)

<3500

16.

Which of the following statements best relates a star’s color to its surface temperature?

a)

blue stars have a relatively low temperature

b)

red stars have a relatively high temperature

c)

blue-white stars have a relatively low temperature

d)

yellow stars have a relatively low temperature

17.
The brightness of a star as seen from earth is defined as:
a)
Apparent Brightness
b)
Absolute Brightness
c)
Brightness
d)
Candid Brightness
18.

A star is born in a cloud of gas and dust called a __________.

a)

nebula

b)

galaxy

c)

asteroid

d)

black hole

19.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
20.
If Earth's mass was cut in half, what would happen to your weight?
a)
Increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, weight is not affected by gravitational force