Science Education Resource Center at Carleton College
Serc: Mn Step: The Disintegration of Polystyrene Lab
A lab activity where students investigate the structure of polystyrene by breaking down the cross-links between bonds using acetone. The experiment will help them to understand how mass is conserved despite the drastic change in volume,...
TeachEngineering
Teach Engineering: Electricity and Magnetic Fields
The grand challenge for this legacy cycle unit is for students to design a way to help a recycler separate aluminum from steel scrap metal. In previous lessons, they have looked at how magnetism might be utilized. In this lesson,...
TeachEngineering
Teach Engineering: Electromagnets
In this activity, the students will complete the grand challenge and design an electromagnet to separate steel from aluminum for the recycler. In order to do this, students compare the induced magnetic field of an electric current with...
Marilyn J. Brackney
Imagination Factory: Create a Butterfly Mobile
This site provides information on Alexander Calder, the inventor of the kinetic sculpture known as the mobile, as well as detailed instructions on how to create your own butterfly mobile. Included are "Tips and Tricks" to making "a more...