Students use the scientific method to complete to experiments that have visible reactions. In this visible reaction lesson, students participate in an experiment with melting ice and one with inflating a balloon. Students record their...

Fifth graders investigate evidence for changes in matter that occur during a chemical reaction.

Students recognize both a physical and chemical change in different substances. They determine which particles actually changed into different substances, and explain if it represented a physical or a chemical change.

Fourth graders identify eleven white substances that are commonly found in the household. They, in pairs, perform experiments on a variety of substances, and must identify them based on the reactions they observe.

Students test for amaylase enzyme in a variety of substances. Student pairs perform a series of tests to determine how long it takes the starch sample to change to sugar molecules and the blue color to disappear when various saliva...