Teacher Demo/Student Activity: Measuring the Speed of Light

This demonstration allows students to experimentally determine the speed of light by heating a piece of chocolate in a microwave oven. This demonstration is best used as an enrichment activity as the concepts involved go beyond the curriculum expectations. Still, the...

Student Activity: Refraction of Light – Reappearing Penny

This demonstration serves as a superb introduction to the refraction of light. Students will view a penny at the bottom of an opaque plastic cup. After moving slightly so that the penny just barely disappears from sight, water is slowly added. The penny magically...

Teacher Demo/Student Activity: Disappearing Beaker

This demonstration will amaze and astound! As you pour vegetable oil into a small Pyrex beaker placed inside a larger Pyrex beaker, the smaller beaker will magically disappear! It could be a teacher demo or a student activity.
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