Archaeologists have discovered a cache of Native American relics. They want to preserve these relics by removing them from the rapidly eroding site to a lab where they can be studied. Native American traditions demand that the items...

Krill is a very small ocean animal that is key to keeping the ocean ecosystem going. The class reviews food webs and chains, learns about the importance of krill, discusses krill anatomy, builds a model of a krill, and then has a...