Every Breath You Take
Students perform an experiment which demonstrates the CO2 cycle. They record their predictions and observations on a handout, and answer questions based on the experiment.
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Carbon Dioxide Can Make a Solution Acidic
Can your breath change the acidity in a liquid? A instructional activity begins with a demonstration that proves it can. Then scholars perform an experiment to determine if other gases can change the pH of liquids. Finally, they research...
6th - 8th Science CCSS: Designed
What Causes Bad Breath?
Onions, garlic, and coffee can all have unfortunate effects on your breath, but what is the real cause of halitosis? Follow along with this video as it investigates how the bacteria that live in our mouths are responsible for these...
4 mins 6th - 12th Science CCSS: Adaptable
How Do the Lungs Work?
With the thousands of tasks our brain consciously performs on a daily basis, it's amazing that breathing isn't one of them. Learn how human bodies are able to automatically control the exchange of gas that keeps us alive with this short...
3 mins 7th - 12th Science CCSS: Adaptable