The purpose of this demonstration is to expose students to the principles and applications of variable density (as is relevant in many scientific and engineering fields). In this hands-on demonstration, the students will be carefully layering different concentrations of colored sugar solutions to create a colorful demonstration of how solutions …

Oil spills are hazardous to human and marine life. Aerogel is a novel material that can be used for water remediation; it has a strong affinity for oil and can be used to absorb oil from the surface of water. Aerogel is very porous which makes it extremely light, allowing …

In small groups the kids will be designing and assembling a water electrolysis device. In principle, the "device" uses electricity from a battery, to electrochemically separate water into its constituent components (hydrogen and oxygen). Each group of students will be supplied with a plastic, transparent cup, two electrode leads (insulated …