Radioactive Decay/Half Life
Students demonstrate radioactive decay using candy corns. For this Physics lesson, students make predictions, collect data and form conclusions about patterns in radioactive decay.
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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