FINDLAY, Ohio — In elementary school, every student gets some form of an earth science lesson. But one school in Findlay took its classroom outdoors this year. Behind Bigelow Hill School is the ...

The best Earth science lessons help kids build a greater understanding of the world around them. The subject gives students opportunities for inquiry into the complex workings of our planet and the ...

You are entirely forgiven for not knowing this, since they are not especially rare — cerium is about as common as copper. The problem is that they’re difficult to isolate and purify; it wouldn’t be ...