Small Pox Scare Wks 1-2
Students identify basic similarities and differences between B- and T-lymphocytes, stressing function, location, and role. They complete a worksheet that requires them to apply knowledge about ELISA and antibodies.
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Mountain Lions in Arizona Lesson 2: The Lion as Predator - Feast of Plenty
Middle and high schoolers examine the basics of a mountain lion's diet by examining food chains and food webs. Learners are each assigned one of the lion's prey species and they must construct a food chain for this animal. They see how a...
6th - 12th Science
Exponential Decay Formula (can skip, involves Calculus)
Sal continues his discussion of decay by showing students the math involved in determining how much a substance is left after one half-life, two half-lives, and even three half-lives have gone by. He sets up a general function of time...
12 mins 7th - 10th Science