After talking to Grandma and Grandpa on the phone, the trio get to wondering… how do telephones work? They begin a fun investigation and discover the electromagnetic waves!
Up Next in Earth To Luna
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  Floating HousesLuna’s family is in Holland riding their bikes down a pretty little canal in Amsterdam. The kids are incredibly surprised that some people in Amsterdam have houses on boats!! Houses are so heavy, won’t the boats sink? What’s happening here? 
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  Let It LeanWhen Luna and her family visit the leaning tower of Pisa, the trio is surprised to see the building really is leaning. How can a building lean like that and not fall over? To answer this question, they’ll need to think like tower builders. 
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  Friendly AntsLuna, Jupiter and Clyde are in Hawaii with their friend Iolana, when they notice ants heading into the camper. But why do the ants walk in a line? During the investigation, they’ll meet some friendly ants and sing a cool song with them! 
 
 
           
          