What do you think of when you hear the words the solar system? You may think of the sun or the planets. The solar system includes those items, but it also is made up of other objects.

Interactive exercise. Assistance may be required. Let's see what you remember about the solar system by taking this short quiz.

Video segment. Assistance may be required. How did you do? Let's review a few of the concepts from above by watching this short video.

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Interactive exercise. Assistance may be required. Let's see what you have learned! Pictured in the chart below are the eight planets in order from their distance from the sun. Drag the name of the planet to its place in the chart below.