Mapping the Skies
By: Walter Oleksy
- The age range is 12 and up
- Grade level is 6th or above
- The Publisher is Franklin Watts
"Geocentric theory" that's what early people believed that the Earth was on the middle of the solar system.
"Heliocentric theory" what we believe in now that the sun is the middle of the solar system.
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2)If you are interested into books like this this you should go check out this book called 100 facts about space. It is a awesome book.