Space & Planets Fun Facts flashcards

Question 1

Which planet is largest in our solar system?

Accepted Answer

Jupiter.

Question 2

About how long is a day on Jupiter?

Accepted Answer

About 10 Earth hours.

Question 3

Which planet has a day longer than its year?

Accepted Answer

Venus: it rotates in about 243 Earth days and orbits the Sun in about 225.

Question 4

Which planet rotates in the opposite direction to most planets?

Accepted Answer

Venus; the Sun would appear to rise in the west there.

Question 5

What is Saturn’s ring system made mostly of?

Accepted Answer

Countless pieces of water ice, with rocky material and dust.

Question 6

Is Saturn’s ring system a solid sheet?

Accepted Answer

No. It is made of many separate particles orbiting Saturn.

Question 7

Which planet is known for the Great Red Spot?

Accepted Answer

Jupiter; it is a giant storm.

Question 8

What is the Sun?

Accepted Answer

A star at the center of our solar system.

Question 9

Which planet is closest to the Sun?

Accepted Answer

Mercury.

Question 10

Which planet is known as the Red Planet?

Accepted Answer

Mars.

Question 11

What is Earth’s natural satellite?

Accepted Answer

The Moon.

Question 12

Does the Moon make its own light?

Accepted Answer

No; it reflects sunlight.

Question 13

Why do we see Moon phases?

Accepted Answer

We see different portions of the Moon’s sunlit half as it orbits Earth.

Question 14

What is the largest planet after Jupiter?

Accepted Answer

Saturn.

Question 15

Which planet has the most prominent visible rings?

Accepted Answer

Saturn.

Question 16

What is a light-year a measure of?

Accepted Answer

Distance: how far light travels in one year.

Question 17

What force keeps planets orbiting the Sun?

Accepted Answer

Gravity.

Question 18

What is the name of our galaxy?

Accepted Answer

The Milky Way.

Question 19

Do all planets orbit the Sun in the same direction?

Accepted Answer

Yes, viewed from above the Sun’s north pole, they orbit in the same direction.

Question 20

What is the closest star to Earth?

Accepted Answer

The Sun.

Space & Planets Fun Facts