How many questions can you answer correctly before you read the Hitchhiker's Guide to the Solar System? How many questions can you answer after you have read the Hitchhiker's Guide to the Solar System? All the answers are contained in the Guide.

Pluto has the lagrest orbit of all the planets.

Earth makes one complete rotation in 24.3 hours.

Jupiter is the 5th planet from the Sun.

The surface temperature of Venus is about 482 degrees C (900 F).

How long does it take for Saturn to make one complete rotation? 10 hours and 39 minutes

What percent of Earth's surface is covered by water? About 71%

It takes Venus 243 Earth days earth day to circle the Sun.

What are Saturn's rings mainly made-up of? Bits of dust and rock frozen in place by ice

What is Jupiter's diameter?88,846

What planet is usually furthest from the Sun? Pluto

Jupiter is the largest planet in the solar system.

What do some scientist think Pluto would be better classified as? Asteroid

It takes Jupiter 10 hours 56 minutes to revolve around on its axis.

How long the Great Red Spot on Jupiter lasted?

Winds on Jupiter blow as fast as 250 miles per hour miles per hour.

Earth is the 5th largest planet in the solar system.

It takes Jupiter 11.58 years to make one complete orbit around the Sun.

Jupiter is surrounded high in its atmosphere by clouds.

Earth is the only planet to have water on its surface?

What does Earth's atmosphere consists of oxygen, nitrogen, and arbon.

The Earth takes 365 days and 6 hours to complete one full revolution around the Sun?

What is the inner most core of the earth is made up of? Liquid hot iron and nickel

Does the earth's atmosphere cause most meteors to dissolve or break apart? Yes

Mars is the 4th planet from the Sun.

Pluto is the smallest planet in the solar system.

What are Jupiter's rings composed of? Bits of rock ice and rock

Mars diameter is 4225 miles.

What powers Mars volcanoes? Heat from the merridean core

At one time Venus was said to have water.

What happened to the water on Venus? It boiled away

Where do scientist think some pools of liquid or frozen water on Mars may be hidden? Under the surface

The clouds on Venus consist of sulfuric acid and carbon dioxide.

Pluto's diameter is 1,417.

How tall is the Olympus Mons? 78,000 feet

What is most of Mars carbon dioxide used for? Carbonate rocks

Pluto's atmosphere is made mostly of nitrogen.

Mercury is one of four Inner or Rocky planets.

Does Jupiter create it's own heat from its internal core? Yes

Mercury is the closest planet to the Sun.

The side of Mercury facing the Sun can reach temperatures as high as 800 degrees F.

What is Mercury's atmosphere mainly made of? Hydrogen, helium and neon

One day on Venus is 243 earth days.

Mercury rotates on its own axis every 59 Earth days.

Mercury's diameter is 3,031 miles .

The core of Earth is surrounded by a mantle.

Is Mercury's magnetic field strong? No

Pluto is the farthest planet from the Sun.

71% of the Earth is covered in water.

Pluto takes 248 years to make one rotation around the Sun.

How far is Mars from the Sun? 142 million miles

Mars is the 7th largest planet.

Pluto is 3,673 million miles away from the Sun.

How long does it take Pluto to make one rotation? 6 days, 9 hours, 18 minutes

Venus is the 2nd closest planet to the Sun.

What planet is Venus similar to? Earth

How far is the Earth from the Sun? 93 million miles

At least 85% of Venus's surface is covered with volcanic rock.