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In this penny lab, students determine the percent composition of a penny produced after 1982. They calculate the amount of copper and zinc in the penny by performing a chemical reaction on the penny with hydrochloric acid.
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Evidence Revealing the Composition of the Atom
Investigators use indirect evidence to guess what is occupying a sealed box. You could also use a set of plastic Easter eggs to encase the unknown items. Another terrific activity involves having learners drop a pencil on a sheet of...
9th - 12th Science
Describing a Chemical Reaction: Playing with Copper
Three experiments involving pennies help young chemists see the chemical reactions between copper and other elements. The first experiment is rhetorical (it prompts students to leave a bright penny out for a year) but the second two...
7th - 11th Science
Penny Perfect Properties (Solid-Liquid Interations)
I can get more water to stay on a penny than you can! Collaborative pairs determine the volume of liquids that can be contained on the surface of copper pennies and plastic coins. The pairs analyze their results using graphs and go on to...
7th - 12th Science CCSS: Designed