Episode 4: Exciting! Summer Camp!
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Summer Camp! The students are going to the Geological Museum, JAXA, and more. Sakura gets unusually excited looked at different minerals and fossils while Ino gets excited watching her. On the other hand, Monroe, Mira, and Ao get excited over rockets and artificial satellites. Mira and Ao try asking different people for information on discovering asteroids, but they aren't able to gather any clues. Though after enjoying a barbeque and some stargazing at the home of Endou-sensei's grandparents, their teacher digs up something...
The stone that represents each region 
is recognized as that prefecture's stone.
الحجر الذي يمثّل كلّ منطقة يتمّ 
.الاعتراف به كحجر المقاطعة
Steine, die charakteristisch für eine Präfektur
sind, werden zu Präfektursteinen erklärt.
Designan como piedras de prefectura
Son piedras de las prefecturas,
Quand une pierre
est très présente à un endroit,
La pietra più rappresentativa di ogni regione è scelta come Pietra Prefetturale.
A rocha que representa a região é
conhecida como a pedra da província.
Есть камни префектуры, каждый из которых
символизирует свой район.