This activity utilizes an online interactive simulation (PhET.colorado.edu) that allows students to explore and manipulate the subatomic particles that comprise the atom. Students also explore atomic mass, ions, nuclear symbols, and the periodic table. A link to the simulation and a downloadable file that includes a pre-lab, a student activity guide, and a post-lab assessment. The simulation also includes other inquiry opportunities and a game.
Students will measure water using grams, millileters and cubic centimeters to discover the density of water. Needed tools are balances, graduated cylinders, a cubic container for measuring cubic centimeters, rulers and water.
With help from the American Assocation of Chemistry Teachers and American Chemical Society, Ptable has sponsored the creation of exciting new lesson plans developed by chemistry teachers which take advantage of the site's in-depth interactivity. Using these free lesson plans, you can engage with the periodic table in ways which were previously impossible.
The concentration of a solution is a simply a measure of the amount of solute dissolved in a given amount of solvent or solution.
Solutions are often referred to as being “dilute” or “concentrated,” but these terms are somewhat vague (qualitative) and not very quantitative.
In this lesson, students explore two "quantitative" methods to express the concentrations of solutions: molarity and molality. Provided are links to two interactive online simulations (PhET), downloadable Student Guides/Activities, a fun laboratory activity, and a worksheet of practice problems to enhance mathematics problem solving.
Molecular Workbench (MW) is powerful, award-winning software that provides visual, interactive computational experiments for teaching and learning science. These simulations are HTML5 and work well on non-java based platforms.
Students will diagram and identify a change of state. Students will describe the energy, spacing and speed of the particles before and after this change.
Based on a student activity where students danced around the room acting as particles, students will identify an incorrect action during the dance. They will explain why the action did not fit the particle model and how it could be corrected. See below for an idea this is based on.