Our Solar System

Question 1

The planet in the solar system with the hottest temperatures is ______.

Accepted Answer

Venus

Question 2

The moons of Jupiter were discovered by ________________

Accepted Answer

Galileo

Question 3

What keeps the planets and moons in their orbits?

Accepted Answer

The force of gravity

Question 4

The atmospheres of Jupiter and Saturn are made mainly of ..........

Accepted Answer

Hydrogen and Helium

Question 5

Which planet is BEST known for its system of rings?

Accepted Answer

Saturn

Question 6

Which planet has polar ice caps and seasons most like Earth?

Accepted Answer

Mars

Question 7

Which planet rotates in the opposite direction as the Earth?

Accepted Answer

Venus

Question 8

One theory for why some planets have unusual rotations (sideways, upside down, or slow) is

Accepted Answer

They were hit by a large asteroid or comet.

Question 9

Except for Earth, the planets of the solar system were named after......

Accepted Answer

Roman gods and goddesses

Question 10

The planet with the strongest magnetic field is ......

Accepted Answer

Jupiter

Question 11

The largest volcano in the solar system is Olympus Mons which is found on the planet _____.

Accepted Answer

Mars

Question 12

The atmosphere of Venus is mainly made of .................

Accepted Answer

Carbon dioxide

Question 13

Saturn's density is so low that it could float in _______________.

Accepted Answer

water

Question 14

The Great Red Spot is actually _______________.

Accepted Answer

Hurricane-like storm

Question 15

Which planet is known as the "red planet" because of the color of its rocks and dust?

Accepted Answer

Mars

Question 16

The more astronomers look through telescopes, the more they see. Which planets have rings?

Accepted Answer

Jupiter, Saturn, Uranus, and Neptune

Question 17

Two planets are called "Gas Giants" because of their size and composition. They are ....

Accepted Answer

Jupiter and Saturn

Question 18

All planets in our solar system have moons except .......

Accepted Answer

Mercury and Venus

Question 19

The reason Uranus and Neptune appear blue is that they have ......... in their atmosphere.

Accepted Answer

Methane

Question 20

The planet nearest the sun is named......

Accepted Answer

Mercury

Question 21

Where is the asteroid belt?

Accepted Answer

Between Mars and Jupiter

Question 22

A planet's magnetic field protects it from _____.

Accepted Answer

Solar radiation

Question 23

Which planet is most likely to be visited by humans some day?

Accepted Answer

Mars

Question 24

Some moons are thought to be really ____________.

Accepted Answer

Captured comets

Question 25

The planet Mars was named after the Roman god of war because.........

Accepted Answer

It appeared red like blood.

Question 26

The only planet to be discovered through mathematical calculations was.....

Accepted Answer

Neptune

Question 27

Earth is protected from comets by the gravity of what planet?

Accepted Answer

Jupiter

Question 28

Some moons around Jupiter and Saturn are larger than ___________.

Accepted Answer

Mercury

Question 29

Which planet rotates sideways to the axis of its orbit?

Accepted Answer

Uranus

Question 30

The theory that the Earth is the center of the solar system is called the ________ theory.

Accepted Answer

Geocentric

Question 31

The planet closest to the sun was named Mercury, the messenger god, because ______.

Accepted Answer

It had such a fast orbit

Question 32

The discovery of the moons of Jupiter helped to prove that ......

Accepted Answer

The Sun was the center of the solar system.

Question 33

The Great Red Spot is found on the planet _____________.

Accepted Answer

Jupiter

Question 34

The terrestrial planets were named because they all......

Accepted Answer

Are rocky and small like Earth

Question 35

The planet with the strongest winds is _______________.

Accepted Answer

Neptune

Question 36

The first planet to be discovered as a result of the invention of the telescope was ..........

Accepted Answer

Uranus

Question 37

Venus has temperatures hot enough to melt lead because _________.

Accepted Answer

Carbon dioxide caused a runaway greenhouse effect

Question 38

The planet that is sometimes called the "evil twin" of Earth is......

Accepted Answer

Venus

Question 39

The theory that the sun is the center of the solar system is called the _______ theory.

Accepted Answer

Heliocentric

Our Solar System

Questions 39

Our Solar System

Questions 39