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Unit 1 Study Guide

Total questions: 50

Worksheet time: 48mins

Name
Class
Date
1.

Star: ________

a)

A bright light in the sky, burning gas

b)

A planet that is burning in the sky

c)

A moon that is reflecting light

d)

A firefly stuck up in the sky

2.

Sun: ________

a)

A star that has planets orbiting around it

b)

A planet that orbits the Earth

c)

A large asteroid in the solar system

d)

A comet that passes by every year

3.

A scientist that studies the sky

a)

astronomer

b)

astronaut

c)

astrologer

d)

biologist

4.

Constellation: ________

a)

A collection of stars that make a picture in the sky

b)

A single planet in the solar system

c)

A type of comet

d)

A phase of the moon

5.

Solar System: ________

a)

A sun and everything that orbits it

b)

Only the planets around the sun

c)

Just the sun itself

d)

Only the moons in space

e)

A group of stars in a galaxy

6.

Something we use to see and study things that are too big, too small, or too dangerous to see

a)

model

b)

measuring cup

c)

program

d)

century

7.

Gravity: ________

a)

A force caused by Earth that pulls objects down due to its mass

b)

A force that the Earth uses to keep us from falling off by pulling south

c)

When a planet pulls down on an object with its atmosphere

d)

The atmosphere pulling up on objects

8.

To move in a path around something

a)

Orbit

b)

Rotate

c)

Spin

9.

Rotate: ________

a)

To spin on a fixed point

b)

To move in a straight line

c)

To move around something in a circle

d)

To orbit an object

10.

Revolve: ________

a)

Another word for orbit

b)

Another word for spin

c)

Another word for gravity

d)

Another word for proximity

11.

Day: ________

a)

How long it takes the Earth to make one rotation (24 hours)

b)

How long it takes the Earth to orbit the Sun (365 days)

c)

The time between two new moons (about 29.5 days)

d)

The time it takes for the Moon to orbit the Earth (about 27.3 days)

12.

Year: ________

a)

365 days

b)

24 hours

c)

7 days

d)

30 days

13.

The only time you can see stars other than the sun is:

a)

at night

b)

during the day

c)

at noon

d)

in the afternoon

14.

The stars we see in the night sky are determined by:

a)

our location on Earth and the time of year

b)

the color of the stars

c)

the age of the stars

d)

the number of planets around the stars

15.

We can't see stars, other than the sun, during the daytime because:

a)

the brightness of the sun outshines them

b)

stars disappear during the day

c)

the stars are too far away during the day

d)

clouds cover the stars during the day

16.

We see different stars at different times of the year because:

a)

the Earth orbits around the Sun, changing our view of the night sky

b)

the stars move closer and farther from Earth throughout the year

c)

the Sun blocks out different stars each night

d)

the Moon's phases reveal different stars

17.

The sun is up sometimes, but not other times, because:

a)

the Earth rotates on its axis

b)

the sun moves around the Earth

c)

clouds cover the sun completely

d)

the sun turns off at night

18.

The moon is sometimes visible during the day because:

a)

Its orbit sometimes places it in the daytime sky

b)

the moon produces its own light

c)

the sun is not as bright during the day

d)

the earth's shadow covers the moon at night

19.

If Earth is spinning, which way is up? Fill in the blank: Up will always be ________ from Earth, no matter where you are on Earth.

a)

away

b)

towards the center

c)

parallel to the equator

d)

in the direction of Earth's rotation

20.

Why don't we see a lot of stars during the daytime?

a)

brightness of the sun

b)

distance of the moon

c)

size of the Earth

d)

movement of the stars

21.

Constellation: ________

a)

A collection of stars that make a picture in the sky

b)

A single planet in the solar system

c)

A type of cloud formation

d)

A type of comet

22.

Rotate: ________

a)

To spin on a fixed point

b)

To move in a straight line

c)

To move around in a circle

d)

To follow a path around something

23.

Revolve: ________

a)

orbit

b)

rotate

c)

spin

24.

Day: ________

a)

one rotation

b)

one revolution

25.

Year: ________

a)

one revolution

b)

one rotation

26.

The stars we see in the night sky are determined by:

a)

where Earth is located in its orbit

b)

how far the moon is from Earth

c)

the age of the stars

d)

the number of planets around the stars

27.

We see different stars at different times of the year because:

a)

the Earth orbits around the Sun, changing our view of the night sky.

b)

the stars move closer and farther from Earth throughout the year.

c)

the Sun blocks out different stars each month.

d)

the Moon's phases reveal different stars.

28.

Samantha will not be able to see Orion during the summer because:

a)

Orion is not visible in the night sky during the summer months.

b)

Orion is only visible during the day in summer.

c)

Orion disappears from the sky permanently in summer.

d)

Orion is blocked by the Moon in summer.

29.

On the star diagram below, which constellation will most likely be visible in April?

a)

Virgo

b)

Orion

c)

Scorpius

d)

Aquarius

30.

Star: A bright light in the sky, ________ gas.

a)

burning

b)

freezing

c)

melting

d)

cooling

31.

Sun: A star that has ________ orbiting around it.

a)

planets

b)

moons

c)

constellations

d)

galaxies

32.

Solar System: A sun and everything that ________ it.

a)

orbits

b)

rotates

c)

moves away from

d)

is facing

33.

Constellation: A collection of ________ that make a picture in the sky.

a)

stars

b)

clouds

c)

planets

d)

comets

34.

Day: One full rotation of the Earth - ________ hours long, including daytime and nighttime.

a)

24 hours

b)

12 hours

c)

365 days

d)

1 year

35.

Gravity: A force that ________ things down.

a)

pulls

b)

pushes

c)

lifts

d)

throws

36.

Explain the difference between daytime and nighttime.

a)

Daytime is when your side of the Earth is facing the sun. Nighttime is when your side of the Earth is facing away from the sun.

b)

Daytime is when the moon is visible. Nighttime is when the sun is visible.

c)

Daytime is when it rains. Nighttime is when it is clear.

d)

Daytime is when stars are visible. Nighttime is when clouds cover the sky.

37.

What causes the daily pattern of daytime and nighttime?

a)

The Earth's rotation (spin) causes us to go from daytime to nighttime.

b)

The Earth's revolution around the Sun causes us to go from daytime to nighttime.

c)

The Moon's phases cause us to go from daytime to nighttime.

d)

Cloud movement across the sky causes us to go from daytime to nighttime.

38.

If we are standing on the side of Earth, why don't we fall off?

a)

Gravity is a force that pulls us toward the center of Earth.

b)

Because the atmosphere holds us down.

c)

Because the Earth is flat and we can't fall off the edge.

d)

Because we are glued to the ground.

39.

If Earth is spinning, which way is up?

a)

Up will always be away from Earth, no matter where you are on Earth.

b)

Up is always towards the North Pole.

c)

Up is always towards the sun, regardless of your location.

d)

Up changes depending on the time of day.

40.

Star: A bright light in the sky, _________.

a)

burning gas

b)

frozen water

c)

solid rock

d)

moving car

41.

Sun:

a)

a star

b)

a comet

c)

a planet

d)

a moon

42.

Astronomer: A scientist that studies _____.

a)

the sky

b)

the plants

c)

the Earth

43.

Solar System: A sun and everything that ________ it.

a)

orbits

b)

touches

c)

ignites

d)

destroys

44.

Proximity: ________ between objects.

a)

Distance

b)

Color

c)

Shape

d)

Texture

45.

Daytime and nighttime differ because:

a)

Daytime occurs when the sun is visible, while nighttime occurs when the sun is not visible.

b)

Daytime is colder than nighttime.

c)

Nighttime is when the moon is visible, while daytime is when the moon is not visible.

d)

Daytime and nighttime have the same amount of sunlight.

46.

We don't see a lot of stars during the daytime because:

a)

the Sun's light is much brighter than the stars

b)

stars disappear during the day

c)

clouds cover all the stars

d)

stars are only visible at night because they move away

47.

Which of the following best describes a constellation?

a)

A single bright star

b)

A cloud of gas in Earth's atmosphere

c)

A planet that orbits the Sun

d)

A group of stars that form a pattern in the sky

48.

Which tool would an astronomer most likely use to study distant stars?

a)

Telescope

b)

Compass

c)

Microscope

d)

Thermometer

49.

Why does Betelgeuse look so small to us?

a)

It is the smallest star.

b)

It is closer than the sun.

c)

It is so far away.

d)

It is not a bright star.

50.

When you are facing the sun, it is __________.

a)

daytime

b)

nighttime