It is unknown if cloud cover increases in response to carbon dioxide levels changing, helping climate change slow down, or if cloud cover decreases, allowing Earth to warm faster. Part four in the series of five lessons has classes...

Students investigate human health by researching sexual health facts. In this puberty lesson, students identify the changes that will occur in a teenage body over the next several years and what the eventual outcome will be. Students...

Drug addiction, including prescription drug addiction, begins with a reason that's different for every user. High schoolers learn more about the reasons people begin abusing drugs with a set of videos and worksheets that discuss four...

Around the world, about 2/3 of adult humans are lactose intolerant. Scholars work in small groups to discuss a few statements about lactose intolerance. Then, they watch a video on the topic and readdress each statement. Whole-class...