Young botanists examine the different parts of tress and then draw parallels between the functions of these parts and the function of parts of the human body. 

Make a Winogradsky Column to discover how microbes live within the digestive tract. First, participants take a tour of the stomach. Then, gather supplies and start building using a variety of materials. Over eight to 10 weeks,...

Every muscle movement requires energy, but where does that energy come from? Scholars answer this question and more as they complete a worksheet. By following the directions, completing research, and discussing it as a class, they begin...

Explore the respiratory system with a model. First, pupils build a set of lungs to experiment how they inflate and deflate. Then, they delve deeper into the topic with a web quest to discover new information about the nose, trachea, and...

Everybody knows that your body needs oxygen to keep going, and that you breathe out carbon dioxide as waste. What happens when you exercise? You've probably noticed that you breathe faster, and your heart beats faster. What triggers your...