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American Chemical Society
The Energy Efficiency of Heating Water
Can a small change in laboratory procedures save energy? Scholars test three different methods for heating water in a science lab. Then, they calculate the energy efficiency for each and compare them to determine which uses the least...
Delaware Health and Social Services
My Life. My Plan: Women
Nationwide, over 40 percent of pregnancies are unintended. A lesson designed for women of childbearing age asks them to consider their goals and provides information about reproductive health. Learners view a PowerPoint presentation and...