free solar system sheets on about.com might be good for free time

Free Printable Worksheets to Teach Your Child About the Solar System

This is a link to a Solar System Vocabulary quiz. I think it is a little bit basic for seventh grade but may help in modifications if some students need a little bit extra help. This can also help tie in English and writing.

Free Printable Worksheets to Teach Your Child About the Solar System

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