Students explore the properties of enzymes. In this chemical reaction lesson, students explore enzymes through a Web-quest and investigative study. Students will collect and summarize data and create a class presentation. This lesson is...

Students determine the meanings of concentration, surface area, and catalysis through an experiment. In this activity about chemical reactions, students participate in an experiment. Students complete three different parts of the...

Students explore food. In this processed and fresh foods activity, students discover how some foods are processed and how they differ from fresh food. The complete group activities and an individual reading assignment. This activity...