When Luna spends time with her grandparents at the beach, she begins to wonder why Grandpa has to take his glasses off to see something close but Grandma needs to put hers on. Why do some people need glasses and others don’t? How do glasses work?
Up Next in Earth To Luna
-
Hello, hello!
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!
-
Floating Houses
Luna’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?
-
Let It Lean
When 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.
