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THE PLANETS and OUR GALAXY

Total questions: 24

Worksheet time: 24mins

Name
Class
Date
1.

The ______________ is the center of our solar system.

a)

Moon

b)

Earth

c)

Sun

d)

Milky Way

2.

How many planets are in our solar system?

a)

7

b)

10

c)

100

d)

8

3.

What part of the solar system is the arrow pointing to?

a)

The Sun

b)

The Asteroid Belt

c)

The Earth

d)

The Kuiper Belt

4.

_______________ holds our solar system together.

a)

Magnetic force

b)

Gravity

c)

Cosmic Energy

d)

Electricity

5.

Which planets are the "inner planets"?

a)

Mercury, Venus, Earth, & Mars

b)

Mercury, Venus, Earth, Saturn

c)

Jupiter, Saturn, Uranus, Neptune

d)

Jupiter, Earth, Uranus, Neptune

6.

Which planets are the "outer planets"?

a)

Mercury, Venus, Earth, & Mars

b)

Mercury, Venus, Earth, Saturn

c)

Jupiter, Saturn, Uranus, Neptune

d)

Jupiter, Earth, Uranus, Neptune

7.

Which Planet is a "Gas Giant"?

a)

Earth

b)

Mercury

c)

Venus

d)

Saturn

8.

A collection of stars, gas, and dust that may contain solar systems is called:

a)

a black hole

b)

a galaxy

c)

a Sun

d)

a light year

9.

In which galaxy is our solar system located?

a)

The Andromeda Galaxy

b)

Messier 82 Galaxy

c)

Milky Way Galaxy

d)

Pinwheel Galaxy

10.

Which of these objects would most likely be found between Mars and Jupiter?

a)

stars

b)

asteroids

c)

comets

d)

dwarf planets

11.

Pluto was reclassified with other nearly round bodies whose objects cross the orbits of other bodies. Which of the terms describes Pluto?

a)

asteroid

b)

dwarf planet

c)

comet

d)

meteor

12.

A comet is a chunk of frozen gases, rock, ice and dust. When does a comet form a visible tail?

a)

at the farthest point of its orbit

b)

as it crosses Earth's orbit

c)

when it leaves the asteroid belt

d)

when it passes close to the sun

13.

What is the difference between a barred spiral galaxy and a normal spiral galaxy?

a)

the number of spiral arms

b)

the shape of the galaxy's center

c)

the number of stars in the galaxy

d)

the colors of the stars in the galaxy

14.

What makes the sun more important to us than other stars?

a)

Unlike other stars, the sun is very large.

b)

When compared to other stars, the sun is the hottest.

c)

Unlike other stars, the sun is the right color for living things.

d)

When compared to other stars, the sun is very close to Earth.

15.
Select the order from smallest to largest.
a)
Sun, Milky Way, solar system, universe
b)
Sun, Milky Way, universe, solar system
c)
Sun, solar system, Milky Way, universe
d)
Sun, solar system, universe, Milky Way
16.
The earth is located between which 2 planets?
a)
Jupiter & Saturn
b)
Mercury & Venus
c)
Venus & Mars
d)
Saturn and Uranus
17.

The sun is in the ________________________ of our solar system.

a)

outside

b)

circle

c)

center

d)

moon

18.

Galaxies are:

a)

gropus of asteroids

b)

groups of planets

c)

groups of stars, gas and dust.

d)

group of satellites

19.
Objects made of ice, gas and dust and orbit our sun are called:
a)
Asteroids
b)
Comets
c)
Meteroids
d)
Meteors
20.

Which are known as 'Gas Giants'?

a)

Inner Planets

b)

Outer Planets

21.

Which planets have a solid rocky surface?

a)

Inner Planets

b)

Outer Planets

22.
Which color star has medium temperature?
a)
Bluish-White
b)
Yellow
c)
Reddish-Orange
23.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
24.
What color of star is the coolest?
a)
Red
b)
Yellow
c)
Blue
d)
White