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Total questions: 94

Worksheet time: 46mins

Name
Class
Date
1.

This is a special lens used to see farther into space.

a)

rover

b)

telescope

c)

lander

d)

probe

2.

Which is true of the dwarf planets?

a)

more massive than nearby objects

b)

never have moons

c)

orbit near the Sun

d)

spherically shaped

3.
Pluto is a dwarf planet that is part of the...
a)
Oort cloud
b)
Kuiper Belt
c)
Moon system of Neptune
4.
When was Pluto demoted to "Dwarf Planet"?
a)
2005
b)
2006
c)
2016
d)
1999
5.

The dwarf planet located in the asteroid belt is ___

a)

Ceres

b)

Eris

c)

Pluto

d)

Make make

6.

Which dwarf planet spins so fast it's day is only 4 hours long?

a)

Haumea

b)

Eris

c)

Makemake

d)

Ceres

7.

Which dwarf planet is kind of pink and was nicknamed the Easter Bunny?

a)

Haumea

b)

Ceres

c)

Pluto

d)

Makemake

8.

Which dwarf planet has the greatest mass?

a)

Pluto

b)

Makemake

c)

Eris

d)

Ceres

9.

Farthest from the Sun.........

a)

Haumea

b)

Pluto

c)

Eris

d)

Makemake

10.

Which dwarf planet is egg-shaped?

a)

Haumea

b)

Makemake

c)

Pluto

d)

Ceres

11.

On which planet does it snow red?

a)

Pluto

b)

Eris

c)

Makemake

d)

Haumea

12.

Which dwarf planet has recently discovered rings?

a)

Ceres

b)

Pluto

c)

Eris

d)

Haumea

13.

This dwarf planet has a heart shaped glacier on it.

a)

Eris

b)

Haumea

c)

Ceres

d)

Pluto

14.

Which dwarf planet is the smallest?

a)

Ceres

b)

Pluto

c)

Haumea

d)

Eris

15.

Which dwarf has the fastest period of rotation in the solar system?

a)

Pluto

b)

Haumea

c)

Ceres

d)

Makemake

16.

Which dwarf planet has 5 moons?

a)

Eris

b)

Mars

c)

Ceres

d)

Pluto

17.

Which dwarf planet has about the same rotational period as the Earth?

a)

Makemake

b)

Haumea

c)

Ceres

d)

Pluto

e)

Eris

18.

Which dwarf planet has the largest diameter?

a)

Makemake

b)

Ceres

c)

Pluto

d)

Eris

19.

Which Dwarf planet is this?

a)

Pluto

b)

Haumea

c)

Makemake

d)

Ceres

e)

Pluto

20.

Which dwarf planet is pictured above?

a)

Ceres

b)

Pluto

c)

Makemake

d)

Eris

e)

Haumea

21.

Which dwarf planet is this

a)

Pluto

b)

Makemake

c)

Haumea

d)

Eris

e)

Ceres

22.

Ceres lies in the _________________

a)

Asteroid belt

b)

Kuiper belt

c)

Jungle

d)

Ocean

23.

Ceres is the largest object in the Asteroid belt

(True or False)

a)

False

b)

True

24.

How many miles away is Pluto from the sun?

a)

4.7 billion miles away

b)

3.6 billion miles away

c)

5.8 billion miles away

d)

1 trillion miles away

25.

Pluto has 5 moons which is the largest one?

a)

Charon

b)

Nix

c)

Hydra

d)

Kerberos

e)

Styx

26.

What is the brightest object in the Kuiper belt

a)

Pluto

b)

MakeMake

27.

Haumea spins faster than Jupiter, so it has how many hours in a day?

a)

3 hours

b)

1 hour

c)

2 hours

d)

4 hours

28.

What are Haumea's 2 moons?

a)

Namaka

b)

Io

c)

Hi'iaka

d)

Europea

29.

How many Earth years does it take for Eris to orbit the sun

(a)  

30.

Are there other planets out there in the universe besides the ones in our solar system?

a)

It depends on which country you are in.

b)

Yes

c)

No

d)

Maybe

31.

What is the problem with seeing planets orbiting other stars?

a)

They are faint

b)

They are sitting right on top of their parent star

c)

They are really far away

d)

All of these answers are correct

32.

How can you discover planets outside of our solar system?

a)

Directly

b)

Indirectly

33.

What are planets outside our solar system officially called?

a)

Ecoplanets

b)

Exoplanets

c)

Alien Worlds

d)

Exoworlds

34.

What is one way exoplanets are indirectly detected?

a)

The Hubble Space Telescope

b)

Infrared Waves

c)

X-Rays

d)

The doppler shift

35.

What are large, short-period exoplanets called?

a)

Big Hotties

b)

Hot Jupiters

c)

Hot Saturns

d)

Hot Exoplanets

36.

What is it called when a planet crosses directly in front of it's star?

a)

a Hot Jupiter

b)

an eclipse

c)

a direct line

d)

a transit

37.

How many exoplanets do scientists believe might there be in our galaxy?

a)

Hundreds of millions

b)

Hundreds of billions

c)

Billions of billions

d)

Millions of billions

38.

What happens if a planet is too close to a star?

a)

it will be too hot for liquid water

b)

it will be too cold for liquid water

c)

it will be dark for plants to grow

d)

it will rotate too quickly

39.

What happens if a planet is too far away from a star?

a)

it will be too hot for liquid water

b)

it will be too cold for liquid water

c)

it will be bright for plants to grow

d)

it will rotate too quickly

40.

What happens if a planet is much more massive than Earth?

a)

Too much gravity; it would be difficult to move around

b)

Too hot for liquid water

c)

Too cold for liquid water

d)

Too bright for plants to grow

41.

What happens if a planet is too close to the sun?

a)

Too much gravity; it would be difficult to move around

b)

It will rotate too slowly (very long days)

c)

Too cold for liquid water

d)

It will rotate too quickly (short days)

42.

What is the habitable zone?

a)

too hot

b)

too cold

c)

just right

43.

What temperature does water boil?

a)

100°C

b)

0°C

c)

200°C

d)

-20°C

44.

What temperature does water freeze?

a)

100°C

b)

0°C

c)

200°C

d)

-20°C

45.

Why would it be difficult to live on Venus?

a)

Venus is far away from the sun so it is a very cold planet.

b)

Venus is far away from the sun so it is a very hot planet.

c)

Venus is close to the Sun so it is a very hot planet.

d)

Venus is close to the Sun so it is a very cold planet.

46.

Why would it be difficult to live on Venus?

a)

Venus is far away from the sun so it is a very cold planet.

b)

Venus is far away from the sun so it is a very hot planet.

c)

Venus is close to the Sun so it is a very hot planet.

d)

Venus is close to the Sun so it is a very cold planet.

47.

What is the "Goldilocks" zone?

a)

A zone where planets get the right amount of heat and light for liquid water to exist.

b)

A zone in our Solar System where aliens live

c)

A zone where plants get too much sunlight.

d)

A zone on the Earth where most people live.

48.

What are comets made of?

a)

mud, rock, water

b)

ice and rock

c)

ice, dust, water

d)

gas and dust

49.

The _____ is the main body of the comet.

a)

gas tail

b)

coma

c)

nucleus

d)

dust tail

50.

The ____ forms around the nucleus when the sun heats it up.

a)

dust tail

b)

coma

c)

nucleus

d)

gas tail

51.

The comet's tail always flies __________________.

a)

ahead of the comet

b)

toward the sun

c)

ahead of the sun

d)

away from the sun

52.

No two comets are alike.

a)

True

b)

False

53.

From earth, comets look like _______.

a)

fuzzy stars

b)

an airplane

c)

a kite

d)

twinkling stars

54.

Comet tails are a result of __________.

a)

their orbit

b)

solar wind

c)

north winds

d)

the sun

55.

One famous comet......

a)

Galileo

b)

Constellations

c)

Halley's Comet

d)

Charlie's Comet

56.

Comets do not tend to travel on an orbit.

a)

True

b)

False

57.

The coma is an atmosphere of gas that forms around the nucleus.

a)

True

b)

False

58.
Comets, being composed of frozen gases, rocks, gravel, and dust, are often called _____
a)
“dirty snowballs”
b)
“yellow snowballs,”
c)
“dusty asteroids”
d)
“dirty asteroids”
59.
Unlike asteroids, which are mostly rock, comets are a more balanced mixture of _____
a)
metal and ice
b)
rock and metal
c)
ice and rock
d)
rock and minerals
60.
As comets progress through their elliptical orbits, they are heated mostly by _____
a)
the Sun
b)
friction
c)
internal molten metals
d)
convection of gases
61.
The process of ice turning directly into a gas is called _____
a)
fusion
b)
convection
c)
sublimation
d)
evaporation
62.
In the past, because comets look fuzzy, they’ve been called _____
a)
“hairy stars”
b)
“hairy eyeballs”
c)
“shooting stars”
d)
“fuzzy navels”
63.
The solid part of a comet is called the _____
a)
core
b)
kernal
c)
nucleus
d)
coma
64.
What is the gaseous cloud around a comet called?
a)
aura
b)
coma
c)
wisp
d)
haze
65.
When gas molecules emitted by a comet lose electrons, they are said to be _____ 
a)
dissociated
b)
ionized
c)
fissioned
d)
magnetized
66.
The “ion tail”, produced by the solar wind acting on ionized gas, points _____
a)
towards the sun
b)
away from the Sun
c)
behind the comet in its orbit
d)
ahead of the comet in its orbit
67.
Which comet appeared incredibly bright and gorgeous in 1997?
a)
Comet McNaught
b)
Comet Halley
c)
Comet Hale-Bopp
d)
Comet 67P/C-G
68.
The dust stream from a comet points _____
a)
towards the sun
b)
away from the Sun
c)
behind the comet in its orbit
d)
ahead of the comet in its orbit
69.
Short-period comets are defined as comets with an orbital period less than _____
a)
2 years
b)
20 years
c)
200 years
d)
2,000 years
70.
Comets that take a path directly into the sun are called _____
a)
sun catchers
b)
self-destructors
c)
kamikaze comets
d)
sundivers
71.
What was the first spacecraft to successfully get pictures of the nucleus of a comet?
a)
NASA's Voyager 1 probe
b)
the American probe Viking 1
c)
the Soviet mission Vega 1
d)
the American mission Apollo 11
72.
In the detailed photos of Comet Halley, what percentage of light was reflected from the nucleus?
a)
4%
b)
16%
c)
40%
d)
60%
73.
Which word best describes the surface of comets?
a)
inhomogeneous
b)
unharmonious
c)
homogeneous
d)
harmonious
74.
Which European mission studied a young comet that looked like a "cosmic rubber ducky"?
a)
XMM-Newton
b)
Rosetta
c)
Huygens
d)
Gaia
75.
What happened to Philae, the lander sent down by Rosetta?
a)
it bounced off the surface
b)
it skidded along the surface
c)
it sank into the surface
d)
it gently landed on the surface
76.
In 2004, what complex molecules were detected in the coma of comet Wild 2?
a)
carbohydrates
b)
fatty acids
c)
proteins
d)
amino acids
77.
Nearly everything we understand about the universe comes from ___
a)
ancient fossils
b)
physical specimens
c)
light emitted or reflected by objects
d)
electrical experiments
78.
A "shooting star" is really a tiny bit of interplanetary debris heated to ___
a)
fluorescence
b)
phosphorescence
c)
incandescence
d)
chemiluminescence
79.
Before it becomes a "shooting star", the actual bit of solid stuff coming from space is called ___
a)
a meteoroid
b)
a meteor
c)
a meteorite
d)
an asteroid
80.
The phenomenon of a meteoroid getting hot and blazing across the sky is called ___
a)
a comet
b)
a meteor
c)
a meteorite
d)
an asteroid
81.
If a meteor hits the ground, we call it ___
a)
a meteoroid
b)
a fallen star
c)
a meteorite
d)
an asteroid
82.
If a meteor hits the ground, we call it ___
a)
a meteoroid
b)
a fallen star
c)
a meteorite
d)
an asteroid
83.
According to Phil Plait, what's the best way to tick off an astronomer?
a)
mix up the terms meteor and meteorite
b)
Ask 'em, "Hey, what's your sign?"
c)
Ask "How old are you in light years?"
d)
complain about Pluto not being a planet anymore
84.
For a typical meteor that you'll see, what is the size of the meteoroid?
a)
smaller than a grain of sand
b)
about the size of a marble
c)
about the size of a softball
d)
about the size of a basketball
85.
When a meteoroid enters our atmosphere, it can be moving at speeds up to __
a)
70 kilometers per hour
b)
700 kilometers per hour
c)
70 kilometers per second
d)
700 kilometers per second
86.
The energy of motion is called ___
a)
elastic energy
b)
kinetic energy
c)
kathartic energy
d)
kickback energy
87.
Meteors get hot due to friction with air, but a far bigger contributor to their heat is ___
a)
thermal expansion of material
b)
expansion of air
c)
compression of air
d)
ablation
88.
When you add up all the meteors, Earth is getting pelted with about __
a)
 a ton of material a day
b)
 a hundred tons of material a day
c)
a ton of material a year
d)
 a hundred tons of material a year
89.
Random meteors, which generally come from the collision of asteroids, are called ___
a)
dependable meteors
b)
sporadic meteors
c)
meteor showers
d)
methodical meteors
90.
Meteor showers, many dozens or even hundreds of meteors per hour, come from ___
a)
asteroids
b)
comets
c)
asteroid collisions
d)
planet collisions
91.
During a meteor shower, the point on the sky where the meteors come from is called ___
a)
the radiant
b)
the vertex
c)
the origin
d)
the locus
92.
Generally, when is the best time to watch a meteor shower?
a)
just before sunrise
b)
just after sunset
c)
after local midnight
d)
during astronomical twilight
93.
The majority of meteorites we find are mostly rock, and are classified as ___
a)
stony
b)
stony iron
c)
composite
d)
rocky iron
94.
Iron meteorites most likely come from the center of ___
a)
a small comet
b)
a small asteroid
c)
a large comet
d)
a large asteroid

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