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Study Guide Unit 1

Total questions: 48

Worksheet time: 55mins

Name
Class
Date
1.

Who were the people that popularized the geocentric model?

a)

Galileo and kepler

b)

Aristotle and Ptolemy

c)

Copernicus and Aristarchus

d)

Brahe and Kepler

2.

What is the biggest difference between the Geocentric Model and the Heliocentric Model?

a)

the shape of the planets' orbits

b)

the movement of the moon

c)

the object at the center of the universe

d)

the brightness of the sun

3.

What does "geo-" mean?

a)

Earth

b)

sun

c)

Center

d)

Moon

4.

What does the word "Helio" mean?

a)

Earth

b)

Mars

c)

Sun

d)

Juputer

5.

Why is Kepler remembered?

a)

He thought the Earth was at the center of the universe.

b)

He recorded precise observations of planets and stars.

c)

He showed that all planets revolved the sun in elliptical orbits.

d)

He discovered galaxies beyond the Milky Way.

6.

Galileo Galilei proposed a model that the Earth orbited the Sun and that all the planets moved in circles around it.

a)

TRUE

b)

FALSE

7.

Orbit = fly or move around in circles

a)

TRUE

b)

FALSE

8.

The Sun is considered to be the center of the solar system:

a)

Heliocentric model

b)

Geocentric model

9.

What is the name of this model?

a)

Heliocentric Model

b)

Geocentric Model

c)

Circle Model

d)

Aristotle Model

10.

Who supported the Geocentric system?

a)

Ptolemy

b)

Aristotle

c)

Copernicus

d)

Galileo

11.

Who proposed the Heliocentric system?

a)

Copernicus

b)

Ptolemy

c)

Aristotle

d)

Galileo

12.

What does the Geocentric system look like?

a)
b)
c)
d)
13.

What does the Heliocentric system look like?

a)
b)
c)
d)
14.

Whose book was published about the heliocentric model of the universe just after he died?

a)

Ptolemy

b)

Copernicus

15.

Which scientific instrument did Galileo use to change the world?

a)

telescope

b)

spyglass

c)

mirror

d)

magnifying glass

16.
I am a rock entering a planet's atmosphere.
a)
meteor
b)
meteorite
c)
asteroid
d)
comet
17.
The belt between Mars and Jupiter
a)
Comets
b)
Asteroids
c)
Meteors
d)
Stars
18.
They are sometimes called shooting stars
a)
interplanetary dust
b)
asteroids
c)
comets
d)
meteors
19.
Sometimes I am called a "dirty snowball". I have a hydrogen cloud, coma, and a nucleus. I am invisible except when near the sun. What am I?
a)
Asteroid
b)
Star
c)
Meteor
d)
Comet
20.
The tail of a comet usually faces
a)
toward the sun
b)
toward the Earth
c)
away from the Sun
d)
away from the Earth
21.
We are composed mainly of rock and metal.
a)
comets and stars
b)
stars and meteors
c)
asteroid and meteors
d)
comets and asteroid
22.
When a meteor hits Earth, what is it called?
a)
meteorite
b)
meteroid
c)
meteor
23.
One similarity between asteroids, comets and meteoroids is that they all:
a)
are made of rock
b)
come from the Asteroid Belt
c)
come from the Oort Cloud
d)
orbit the sun
24.

Olivia, Abigail, and Nora are on a space adventure! They're trying to map out the solar system. Can you help them figure out the correct order of the planets furthest from the sun?

a)

Saturn, Uranus, Jupiter, Neptune

b)

Uranus, Neptune, Jupiter, Saturn

c)

Neptune, Jupiter, Uranus, Saturn

d)

Jupiter, Saturn, Uranus, Neptune

25.

Hey Zoe, Oliver and Abigail! Let's take a trip to outer space. Can you tell me which planet, being the fifth one from the sun, is also the largest in our solar system?

a)

Jupiter

b)

Saturn

c)

Mars

d)

Earth

26.

James, Abigail, and Luna are on a space adventure! They come across a planet and Luna thinks it's a gas giant. Can you guess which planet they are looking at?

a)

Venus

b)

Earth

c)

Mars

d)

Neptune

27.

Ethan, Charlotte, and Sophia are on a space adventure! They come across the asteroid belt. Can you help them figure out where it is located?

a)

between Earth and Mars

b)

between Jupiter and Saturn

c)

between Mars and Mercury

d)

between Mars and Jupiter

28.

Imagine you are on a space adventure with Abigail and Ethan. You come across a planet that supports life, is composed of rock, and is the 3rd planet from the sun. Can you guess which planet it is?

a)

Venus

b)

Earth

c)

Mercury

d)

Mars

29.

Abigail, Avery, and Ethan are on a space adventure! They've reached the 8th planet from the Sun, an outer planet. Can you guess which planet they've landed on?

a)

Mars

b)

Neptune

c)

Earth

30.

Anika, Grace, and Henry are on a space adventure! They are exploring the inner planets. What common characteristic would they find in these planets?

a)

Large

b)

Gaseous

c)

Rings

d)

Rocky Surface

31.

Hey Benjamin, Hannah, and Luna! Can you guess which planet is the only one to do a funky dance and spin on its side? Also, it's the seventh one in line from the sun!

a)

Earth

b)

Jupiter

c)

Neptune

d)

Uranus

32.

Imagine Harper, Noah, and Abigail are on a space adventure! They come across Uranus, Saturn, Jupiter, and Neptune. Which planet do you think they would find has the coldest surface temperature?

a)

Uranus

b)

Saturn

c)

Jupiter

d)

Neptune

33.

Noah, Michael, and Aria are on a space adventure! They've just passed the first planet from the sun and are now approaching the second one. This planet is a dry, rocky world shrouded in toxic clouds. Can you guess which planet they're visiting?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

34.

Daniel, Emma, and Sophia are on a space adventure! They come across a planet known as the "red planet". Can you help them identify which planet it is?

a)

Venus

b)

Mercury

c)

Earth

d)

Mars

35.

Imagine this, Olivia, James, and Jackson! You're on a spaceship, zooming through the solar system. You come across the sixth planet from the sun. It's so light, it could float in water! Can you guess which planet it is?

a)

Jupiter

b)

Saturn

c)

Uranus

d)

Neptune

36.

Ethan, Noah, and Arjun are on a space adventure! Can you help them remember the correct order of the planets starting from the sun?

a)

mars, venus, mercury, earth

b)

venus, mercury, earth, mars

c)

mercury, venus, earth, mars

d)

mercury, earth, venus, mars

37.

Imagine Charlotte, William, and Benjamin are astronauts exploring the universe. They come across a planet that is most similar to earth and is often referred to as her "sister" planet. Can you guess which planet they discovered?

a)

Mars

b)

Venus

c)

Earth

d)

Mercury

38.

Imagine Benjamin, Harper, and Mia are astronauts exploring the universe. They come across the inner planets and notice some characteristics. Can you help them identify 3 common traits of these inner planets?

a)

Rocky

b)

Smaller

c)

Gaseous

d)

Terrestrial

39.

Imagine Scarlett, Mia, and Aria are astronauts exploring the universe. They come across Venus, often called Earth's twin. But there's a major reason why they can't set up a picnic there. Can you guess why?

a)

Because Venus has no atmosphere.

b)

Because Venus' surface temperature is about 480oC.

c)

Because the water on Venus' surface is too hot to support life.

d)

Because Venus' dense clouds keep the planet's temperature very low.

40.

Arjun, Ethan, and Aiden are on a space adventure and they come across a bar graph that compares the orbital speeds of the planets. They are trying to draw conclusions from the graph. Can you help them figure out which of these conclusions can definitely be drawn from the graph?

a)

The planet's rotation speed increases with increasing distance from the Sun.

b)

The mass of the planets increases with increasing distance from the Sun.

c)

The gravitational pull of the Sun decreases with increasing distance from the Sun.

d)

The orbital periods of the planets increase with increasing distance from the Sun.

41.

Imagine Mia, Grace, and Lily are astronauts exploring the vast universe. They come across two sets of planets. One set is closer together, while the other is more spread out. Which set of planets are they likely to find closer together?

a)

Inner Planets

b)

Outer Planets

42.

Imagine Mia, Grace, and Lily are astronauts exploring the vast universe. They come across two sets of planets. One set is closer together, while the other is more spread out. Which set of planets are they likely to find closer together?

a)

Inner Planets

b)

Outer Planets

43.

Imagine Aria, Henry, and Olivia are on a spaceship exploring the solar system. They start wondering, why do planets like Earth orbit the sun and not the other way around? What could be the reason?

a)

The sun has a greater mass than the planets

b)

The sun is the center of the universe

c)

The planets have a smaller diameter than the sun

d)

The sun is the center of the solar system

44.

Elijah, Lily, and Ava are on a virtual space mission to Saturn! They have some data about the planet. Which piece of information will help them figure out how long a year lasts on Saturn?

a)


The mass of Saturn

b)

The radius of Saturn

c)

The time it takes for Saturn to rotate on its axis

d)

The time it takes for Saturn to orbit around the Sun

45.

Elijah, Lily, and Ava are on a virtual space mission to Saturn! They have some data about the planet. Which piece of information will help them figure out how long a year lasts on Saturn?

a)


The mass of Saturn

b)

The radius of Saturn

c)

The time it takes for Saturn to rotate on its axis

d)

The time it takes for Saturn to orbit around the Sun

46.

Emma, Liam, and Arjun are on a space adventure! They are trying to figure out which is the 4th planet from the Sun. Can you help them?

a)

Earth

b)

Jupiter

c)

Mars

d)

Mercury

47.

Priya, Charlotte, and James are having a debate. They are trying to remember which planet has just 1 moon. Can you help them out?

a)

Venus

b)

Jupiter

c)

Earth

d)

Mercury

48.

Isla, Oliver, and Avery are on a space adventure! They're curious and start wondering, what would happen if they could magically double the distance of a planet from the Sun? Can you help them figure it out?

a)

The planet’s year length would be longer.

b)

The planet’s mass would be doubled.

c)

The planet’s orbital period would become shorter.

d)


The planet’s day length would be shorter.