How can you tell how acidic or basic something is? Touching or tasting it could be dangerous or unpleasant. In this activity, students use indicator papers made from familiar fruits & vegetables to see which are the best at measuring pH.
In this module, each student represents a carbon atom. The purpose of the activity is to show how carbon atoms move through the environment over time, known as the “carbon cycle”.
A mysterious white powder! What could it be? Our young investigators will sleuth out the identities of the mystery mixtures by first building an “answer key” for how the individual “known” powders react to a variety of tests. Then they’ll use this key to figure out what pair of powders are in each unknown mixture by subjecting them to these same tests.