Elements and Compounds

Several videos illustrate physical processes or chemical processes. Students use a guided-inquiry activity sheet to classify the starting and ending substances and to identify the processes as physical or chemical.

Combustion of Propane

Determine the Identity of a Substance Computer Simulation

Sodium chloride crystals cleave evenly along an orthogonal plane.

A collection of one mole of various elements and compounds. "Testing"

Copper plates out on a strip of zinc immersed in a solution of aqueous copper(II) sulfate.

Magnesium burns brightly in air.

Flashbulb weighs the same before and after ignition.

Large molecular models are placed in polyhedral boxes.