Chemical and Physical Changes
Grade Level: 6-8
Chemical changes, evidence of changes
Students investigate chemical and physical changes while looking for common evidence for both.
The Biodiesel Lab
Grade Level: 9-12
Acid base titration, pH
Students explore pH and pH indicators with at-home materials. In this activity, students learn how titration is used in the production of biodiesel fuel and are challenged to conduct their own titration to determine the concentration of acetic acid in vinegar.