The Solar System

Match it! Select the correct answer from the pull down...Good luck!

The fact the each planet's orbit is an ellipse was discovered by

In a heliocentric system, Earth revolves around

One _______ _______ equals the average distance between Earth and the sun, about 150,000,000 kilometers.

The solar wind is a stream of electrically charged particles that extend outward from the sun’s ________.

A meteoroid that hits Earth’s surface is called a(n) ____________________.

What layer are you looking at when you look at an image of the sun?

Which set of planets are in the correct order?

Most ancient astronomers thought that all celestial objects revolved around