The Inner Planets

The Inner Planets

Author: , Illustrator: Erik Gregersen

The inner planets, Mercury, Venus, Earth and Mars, are important for study because they are so similar. All are terrestrial, meaning they have a solid surface. Mercury, being closest to...
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Ages: 8-10
Read time: 2-3 hours
AR LEVEL: N/A
LEXILE©: N/A
Ages: 8-10
Read time: 2-3 hours

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