Planets
(General)
The Sun
The planets in our solar system
The Inner Planets
The Gas Giants
100

All planets orbit around a ___________

... a star.

100

The sun is a ___________ .

Star

100

How many big planets are there in our solar system?

There are 8 big planets in our solar system.

100

Our planet Earth is the ______  from the sun.

A) 1st        C) 3rd

B) 2nd      D)  4th

C)   Earth is the 3rd planet from the sun.

100

Which is the furthest planet from the sun?

Neptune

200

Name 2 things that planets are made out of.


Most planets are made out of rock, metal and/or gas.  Some planets also have ice.

200

True or false?  

The sun orbits the Earth

False.  Earth orbits the sun.

200

How many dwarf planets are there in our solar system?

There are 5 small, dwarf planets in our solar system.

200

What are the inner planets mostly made of?

Rock and metal.

200

All gas giants have  ________ made of mostly ice and dust.

Rings

300

Do planets create their own light?

No, they only reflect light from stars.

300

In our solar system, what keeps the planets from floating away?

Gravity.  The pull of the sun's gravity holds the planets in orbit.

300

Name one dwarf planet.

Pluto, Eris, Ceres, MakeMake, or Haumea

300

Which planet is closest to the sun?

Mercury

300

Which planet has a hurricane that has been blowing for more than 400 years?

Jupiter.  The hurricane forms "The Great Red Spot".

400

What do we call the smaller spheres that orbit planets?

Moons orbit planets.

400

How many Earths could fit inside the sun?

A)  10 

B)  100 

C)  One million

C) One million Earths could fit inside the sun!

400

Create your own sentence to remember the order of the planets in our solar system, starting with the closest to the sun.

M...  V... E...  M...  J... S...  U... N...

M...  V... E...  M...  J... S...  U... N...

400

On which planet is our solar system's largest volcano, Olympus Mons?

Mars.  Olympus Mons is as tall as 3 Mount Everests stacked up.

400

Which planet has more than 60 moons?

Jupiter

500

Have humans ever set foot on another planet?

No, only Earth and Earth's moon have been touched by humans.

500

More or less how much hotter is the sun than a hot summer day on Earth?

A)  10 times hotter

B)  100 times hotter

C)  One million times hotter

B)  The sun is about 100 times hotter than a hot day on Earth.

500

List all of the big planets in our solar system.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

500

Which is our solar system's hottest planet?

Venus. 

Venus is the hottest planet in our solar system, even though it is not the closest planet to the sun. It's very hot because it's surrounded by a thick layer of gas.

500

Which planet spins on its side, rolling like a barrel instead of a top?

Uranus

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