The Solar System

What space object has a long tail that reflects sunlight?

What is the name of the mysterious region furthest away from the Sun?

Which of the following is defined as a layer of gases extending above the Earth's surface?

Which of the following is NOT one of the four "inner planets"?

The Sun is made mostly from what gas?

What is the approximate circumference of the Earth?

What type of planet is Pluto?

What part of the Earth is made up of oceans, lakes, rivers, and other bodies of water?

Which of the following is NOT one of the four "outer planets"?

What percentage of the Earth's surface is water?

What is the name of the region beyond the Kuiper Belt?

The Sun has what percentage of our solar system's mass?

The part of the Earth that is made up of land from the Earth's crust is called the _____.

What does the word "solar" mean?

How long ago did the solar system develop?

The part of the Earth that supports life is called the _____.

The four outer planets are far away from the Sun, on the other side of what "line"?

What was the major force that pulled our solar system together?

What is the name of our galaxy?

In what region does Pluto travel?