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The earth is a magnet
Lumen · High school
Gilbert's terrella, not a poster of poles. A small globe of loadstone stands in for the planet. The needle is the argument.
Student age
10years · 5th grade
Lumen · High school
Gilbert's terrella, not a poster of poles. A small globe of loadstone stands in for the planet. The needle is the argument.
Student age
10years · 5th grade