Solar system

Atmospheres of the gas giants are primarily ___and ___with traces of other materials.

You see the ___________________ when you view an image of the sun.

Because the four outer planets are so large, they are often called ____________________ .

The correct order of the gas giants from innermost to outermost from the sun is:

Which planet rotates so slowly that its day is longer than its year?

The inner planets that experience a greenhouse effect are_____________.

What characteristic makes the planet Uranus DIFFERENT from the other outer planets ?

Relatively cool areas on the sun' s surface are called ___________________.

Some regions of Mars have giant_________________.

Scientists think the solar system formed_____.

All the outer planets have many _______which range in number from 13 to greater than 60.

The sun produces energy through______________.

The correct order of size of the inner planets from smallest to largest is :

The sun, planets, their moons and a variety of smaller objects. .

Which inner planet has atmosphere so thick, it would crush a human?

Which planet's orbit is farthest from Earth ?

Scientists use _______________________ to measure distances within the solar system.

If you were going to build a space colony settlement, where would you build it?

The two most abundant elements in the sun are ________________ .

A few scientists believe that Saturn's largest moon,_________, may support life.

The sun is a(n) ___________.

The solar system began to form when ___________________ pulled rock, ice and gas together.

In which part of the sun does nuclear fusion take place?

Mars's atmosphere is composed mainly of ________________________.

What is one characteristic common to all OUTER planets?

Temperature and pressures _____ from the outer layers to the inner layers of the gas giants.

Mercury has a temperature range of -170 to 430 degrees C. The BEST explanation for this is:

Which feature is shared by all the inner planets?

What is the best example of a greenhouse gas?

Another name for the inner planets is the ________________________________ .