End of Year Solar System Challenge

Question 1

This used to be one of 9 planets, now it is a dwarf planet.

Accepted Answer

Pluto

Question 2

How many high and low tide cycles typically occur in a day?

Accepted Answer

two high tides and two low tides

Question 3

What keeps most objects in the solar system in regular and predictable motion?

Accepted Answer

The force of gravity

Question 4

Which planet is not one of the Inner Planets?

Accepted Answer

Saturn

Question 5

Which planet is third from the Sun?

Accepted Answer

Earth

Question 6

As Earth rotates on its axis, half of the planet has day and the other has___________.

Accepted Answer

Night

Question 7

This planet is known for its rings which are made from ice and dust.

Accepted Answer

Saturn

Question 8

This is the largest planet in our solar system. It has a storm system called the Great Red Spot

Accepted Answer

Jupiter

Question 9

This planet rotates on its side.

Accepted Answer

Uranus

Question 10

What determines the phases of the moon?

Accepted Answer

Where the moon is in its orbit around the Earth

Question 11

This is the only planet in our solar system known to support life.

Accepted Answer

Earth

Question 12

The following image represents:

Accepted Answer

A Solar Eclipse

Question 13

The hours of daylight vary according to:

Accepted Answer

the season of the year

Question 14

How many hours does it take for Earth to rotate on its axis?

Accepted Answer

24

Question 15

The stars in the night sky and the sun during the day appear to move across the sky due to:

Accepted Answer

both the earth's rotation and revolution

Question 16

Which planet is closest to the sun?

Accepted Answer

Mercury

Question 17

What object produces all energy for our solar system?

Accepted Answer

Sun

Question 18

What revolves around Earth?

Accepted Answer

The moon

Question 19

Which phase of the moon is this?

Accepted Answer

waning crescent moon

Question 20

What is the main cause of tides on Earth?

Accepted Answer

gravitational pull of the Moon

Question 21

What has the most effect on Earth's seasons?

Accepted Answer

Earth's tilt

Question 22

How many Earths could fit in the Sun?

Accepted Answer

about 1,000,000

Question 23

Which planets have many moons, and are gas giants?

Accepted Answer

Outer Planets

Question 24

This planet has many volcanoes, has an atmosphere filled with poisonous gas and is the hottest.

Accepted Answer

Venus

Question 25

Which season would we have if our part of Earth was tilted toward the sun?

Accepted Answer

Summer

Question 26

How many planets are there in our solar system?

Accepted Answer

8

Question 27

The moon goes through a cycle of phases every

Accepted Answer

month

Question 28

These planets are closest to the sun, have a rocky surface, and few moons

Accepted Answer

Inner Planets

Question 29

The Moon appears bright at night because

Accepted Answer

it reflects light from the Sun

Question 30

This is the 4th planet from the sun. Called the "Red Planet" and has the highest mountain.

Accepted Answer

Mars

Question 31

How many degrees is Earth's axis tilted?

Accepted Answer

23.5

Question 32

Which phase of the moon is this?

Accepted Answer

full

Question 33

All planets in our solar system revolve around what?

Accepted Answer

The sun

Question 34

This planet is the farthest away from the sun.

Accepted Answer

Neptune

Question 35

The imaginary line that goes through the North Pole and South Pole is called a(n)

Accepted Answer

axis

Question 36

The Earth revolves around the sun once every

Accepted Answer

Year

Question 37

Which planet is not one of the Outer Planets?

Accepted Answer

Earth

End of Year Solar System Challenge

Questions 37

End of Year Solar System Challenge

Questions 37