Luna’s family is visiting a small coastal town in Japan. When their friend finds a rare pearl in an oyster it gets them wondering… How do pearls get inside oysters? What’s happening here? They’ve just gotta know!

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!

Discover that, because they breathe through gills, there are crabs that live in the water, crabs that live on land, and crabs that do both.

Alice came to spend a few day with Luna’s Family. While they discover the region of Bonito, Luna, Jupiter, Clyde and Alice begin a scientific investigation to find out where the water from the river comes from. During this investigation, they’ll meet a very special Brazilian animal, and some funny fish.

Discover that the high level of salt in the Dead Sea makes it so easy to float and what causes this.