What's the difference between hibernation and a good nap? Find out with an engaging life science activity that compares the hibernation habits of grizzly bears and marmots. After learners read an informational passage about each mammal,...

Students explore how animals survive in the winder. After attending a gall-collecting field trip, students place them in a freezer. Once frozen, the students open the gall flay larva and observe it as the larva revives. Students...