Science Matters
Digestive System Simulation
What do a sandwich bag and a mouth have in common? Your classes are about to find out in a hands-on instructional activity that has groups build models of the digestive system. Using a little imagination, learners use everyday materials...
Science Matters
Digestion: Chew on That
When your mom tells you to chew your food, you really should listen! A lesson on the digestive system examines the first step of digestion that happens in the mouth. Learners check crackers and use iodine to highlight changes in the...