Space Exploration for 1st Graders: Discover the Wonders of the Universe

Question 1

How can you tell the difference between a planet and a star?

Accepted Answer

Stars create their own light, while planets reflect light from stars.

Answer

Planets are made of gas, while stars are made of rock.

Answer

Planets are larger than stars.

Answer

Planets have moons, while stars do not.

Question 2

What gas makes up most of the air on Mars?

Accepted Answer

Carbon Dioxide

Answer

Hydrogen

Answer

Oxygen

Question 3

How does the Earth's spinning on its axis create day and night?

Accepted Answer

The Earth spins, making the sun seem to move across the sky.

Answer

The Earth's spinning makes the moon move across the sky.

Answer

The Earth's spinning makes the stars move across the sky.

Answer

The Earth's spinning makes the Earth move around the sun.

Question 4

What is a light-year used to measure?

Accepted Answer

The distance light travels in a year

Answer

The time it takes light to reach Earth from the sun

Answer

The brightness of a star

Answer

The size of a planet

Question 5

Which is larger, the Sun or the Earth?

Accepted Answer

The Sun is much larger than the Earth.

Answer

The Earth is larger than the Sun.

Question 6

Imagine a space probe traveling to Mars. If Mars was twice as far away from Earth, how would that affect the travel time?

Accepted Answer

The travel time would be twice as long.

Answer

The travel time would be half as long.

Answer

The travel time would stay the same.

Question 7

Which planet in our solar system is the farthest from the Sun?

Accepted Answer

Neptune

Answer

Earth

Answer

Jupiter

Question 8

What is the name of the galaxy we live in, and why is it called that?

Accepted Answer

Milky Way Galaxy; it looks like a milky band of light in the night sky.

Answer

Andromeda Galaxy; it's the closest galaxy to our solar system.

Answer

Solaris Galaxy; it has a bright center and spiral arms.

Answer

Orion Galaxy; it's shaped like the Orion constellation.

Question 9

Which space vehicle can explore the surface of another planet by driving around?

Accepted Answer

Rover

Answer

Probe

Answer

Telescope

Question 10

Which planet in our solar system is the warmest?

Accepted Answer

Venus

Answer

Mars

Answer

Jupiter

Question 11

Which planet is the closest to the Sun?

Accepted Answer

Mercury

Answer

Mars

Answer

Venus

Answer

Earth

Question 12

Which of these is NOT a planet in our solar system?

Accepted Answer

Sun

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 13

Which of these is not a planet in our solar system?

Accepted Answer

Pluto

Answer

Earth

Answer

Mars

Answer

Saturn

Question 14

Which planet in our solar system is the largest?

Accepted Answer

Jupiter

Answer

Earth

Answer

Mars

Question 15

Which planet in our solar system is known as the 'Red Planet'?

Accepted Answer

Mars

Answer

Venus

Answer

Jupiter

Question 16

Which of these is NOT a planet in our solar system?

Accepted Answer

The Sun

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 17

Which of these is NOT a planet in our solar system?

Accepted Answer

Pluto

Answer

Mars

Answer

Jupiter

Answer

Venus

Question 18

Which of these is NOT a planet in our solar system?

Accepted Answer

Moon

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 19

Which of these is NOT a planet in our solar system?

Accepted Answer

Sun

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 20

Which of these is NOT a planet in our solar system?

Accepted Answer

The sun

Answer

Earth

Answer

Jupiter

Answer

Mars

Question 21

Which planet is the closest to the Sun?

Accepted Answer

Mercury

Answer

Venus

Answer

Mars

Answer

Saturn

Question 22

Which of these is a star, not a planet?

Accepted Answer

Sun

Answer

Earth

Answer

Mars

Question 23

Which of these is NOT a planet in our solar system?

Accepted Answer

The Sun

Answer

Earth

Answer

Mars

Question 24

Which of these is NOT a planet in our solar system?

Accepted Answer

Pluto

Answer

Mercury

Answer

Jupiter

Question 25

Which planet in our solar system is called the 'Red Planet'?

Accepted Answer

Mars

Answer

Venus

Answer

Jupiter

Question 26

Which of these is NOT a planet in our solar system?

Accepted Answer

Sun

Answer

Earth

Answer

Mars

Answer

Saturn

Question 27

Which planet in our solar system is the closest to the Sun?

Accepted Answer

Mercury

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 28

Which planet is nicknamed the "Red Planet" due to its reddish appearance?

Accepted Answer

Mars

Answer

Jupiter

Answer

Saturn

Question 29

Which planet in our solar system is called the 'Red Planet'?

Accepted Answer

Mars

Answer

Earth

Answer

Jupiter

Answer

Saturn

Question 30

Which of these is not a planet in our solar system?

Accepted Answer

Pluto

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 31

Which of these is NOT a planet in our solar system?

Accepted Answer

Sun

Answer

Earth

Answer

Jupiter

Answer

Mars

Question 32

Which planet is known as the "Red Planet"?

Accepted Answer

Mars

Answer

Earth

Answer

Venus

Question 33

Which planet in our solar system is known as the 'Red Planet'?

Accepted Answer

Mars

Answer

Venus

Answer

Saturn

Answer

Neptune

Question 34

Which of these is NOT a planet in our solar system?

Accepted Answer

The Sun

Answer

Earth

Answer

Jupiter

Answer

Mars

Question 35

Which planet in our solar system is known as the 'Red Planet'?

Accepted Answer

Mars

Answer

Earth

Answer

Jupiter

Answer

Saturn

Question 36

What is a planet?

Accepted Answer

A big ball of rock and gas that moves around a star

Answer

A big ball of hot gas that gives off light

Question 37

Which of these is not a planet in our solar system?

Accepted Answer

Sun

Accepted Answer

Moon

Answer

Earth

Question 38

Which planet in our solar system is nicknamed the Red Planet due to its reddish appearance?

Accepted Answer

Mars

Answer

Earth

Answer

Saturn

Answer

Jupiter

Question 39

Which planet in our solar system is the hottest?

Accepted Answer

Venus

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 40

Which planet in our solar system is nicknamed the 'Red Planet'?

Accepted Answer

Mars

Answer

Venus

Answer

Jupiter

Answer

Saturn

Question 41

Which of these is NOT a planet in our solar system?

Accepted Answer

Pluto

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 42

Which planet in our solar system has a giant, red storm?

Accepted Answer

Jupiter

Answer

Saturn

Answer

Mars

Question 43

Which is the biggest planet in our solar system?

Accepted Answer

Jupiter

Answer

Saturn

Question 44

What is the name of the star that our solar system goes around?

Accepted Answer

Sun

Answer

Moon

Question 45

What makes planets and other stuff go around and around?

Accepted Answer

Gravity

Answer

Magnetism

Question 46

Which planet has rings around it?

Accepted Answer

Saturn

Answer

Jupiter

Question 47

What is the name of the big group of stars that our Sun is in?

Accepted Answer

Milky Way

Answer

Andromeda

Question 48

Which of the following is NOT a planet in our solar system?

Accepted Answer

Moon

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 49

What is the name of the star that our planets orbit around?

Accepted Answer

Sun

Answer

Moon

Answer

Mars

Answer

Saturn

Question 50

Which of the following is the largest planet in our solar system?

Accepted Answer

Jupiter

Answer

Earth

Answer

Venus

Answer

Mars

Question 51

What is the shape of the Earth?

Accepted Answer

Round

Answer

Square

Answer

Triangle

Answer

Oval

Question 52

What is the name of the galaxy that our solar system is part of?

Accepted Answer

Milky Way

Answer

Andromeda

Answer

Orion

Answer

Ursa Major

Question 53

Which of the following is the closest planet to the Sun?

Accepted Answer

Mercury

Answer

Venus

Answer

Earth

Answer

Mars

Question 54

What is the name of the planet known as the 'Red Planet'?

Accepted Answer

Mars

Answer

Mercury

Answer

Venus

Answer

Jupiter

Question 55

Which of the following planets is known for its large, prominent rings?

Accepted Answer

Saturn

Answer

Earth

Answer

Mars

Answer

Jupiter

Question 56

Who is the largest moon in our solar system?

Accepted Answer

Ganymede

Answer

Titan

Answer

Callisto

Answer

Io

Question 57

Which planet is closest to the sun?

Accepted Answer

Mercury

Answer

Earth

Answer

Mars

Answer

Venus

Question 58

Which planet is called the 'Red Planet'?

Accepted Answer

Mars

Answer

Venus

Answer

Jupiter

Answer

Saturn

Question 59

What is the name of the star at the center of our solar system?

Accepted Answer

Sun

Answer

Moon

Answer

Mercury

Answer

Venus

Question 60

Which of these is NOT a planet in our solar system?

Accepted Answer

Pluto

Answer

Mars

Answer

Venus

Answer

Earth

Question 61

Which planet is the biggest in our solar system?

Accepted Answer

Jupiter

Answer

Saturn

Answer

Neptune

Answer

Uranus

Question 62

Which planet has the most moons?

Accepted Answer

Jupiter

Answer

Mars

Answer

Venus

Answer

Earth

Question 63

What is the name of the natural satellite that goes around Earth?

Accepted Answer

Moon

Answer

Star

Answer

Sun

Answer

Planet

Question 64

What is the name of the galaxy that holds our solar system?

Accepted Answer

Milky Way Galaxy

Answer

Andromeda Galaxy

Answer

Sombrero Galaxy

Answer

Cartwheel Galaxy