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Physical Science

  • Teaching Hardy Weinberg in the classroom In order for allele and genotype frequencies to remain stable in a given population, certain conditions must be met. But what happens when these conditions aren’t met? Help your students understand the Hardy-Weinberg principle by modeling a population of edible treats. View »
  • Sticky-Tape Electroscope Most everyone has seen static electricity in action. Your unit on electricity probably includes 1 or 2 demos of it. Do more with your next lesson on static electricity by making it a lesson on the scientific method, using this easy, inexpensive activity. View »
  • The Lava Lamp Lab: A Guided-Inquiry Approach to Intermolecular Forces Remember that lava lamp you had? You and your students can use this lab to explore the fascinating world of intermolecular forces firsthand. View »
  • Chemistry Holiday Hoopla! If the approaching holidays are causing student minds to wander, try these holiday-oriented demonstrations to recapture their attention. The activities acknowledge the season while helping students understand important chemistry concepts. View »
  • Mirror Mirror Do you want to stimulate some critical thinking in your classroom? Tell your class that we do not see living or inanimate things; we only see the light reflected from those things. View »
  • Engineering Disasters: Applying Lessons Learned from Failure The infamous crash of the Tacoma Narrows Bridge in 1940 and the world's largest oil spill in the Gulf of Mexico in 2010 are just 2 examples of engineering disasters that have occurred throughout history. Design failures involved in such catastrophes have changed our approach to civil, structural, and mechanical engineering projects. In the wake of grim tragedy, development of safer methods occurs in the hope of preventing history from repeating. View »
  • Solve the Mystery Lab and Make a Silver Christmas Ornament Here's an activity that gets students in the holiday spirit while engaging their brains to solve a scientific mystery. View »
  • Hydrogen Spectrum Activity Although not the currently accepted model for all atoms, Bohr’s model does contain important features that are incorporated in our current model of the atom. View »
  • Cooking Chemistry: Not-Your-Traditional Pumpkin Pie Have you considered the complex science behind baking? One of our product developers has, and is sharing her favorite pumpkin pie recipe and an enlightening explanation of the science that makes that tasty treat possible. This year, kick off the holidays with an engaging (and edible!) lesson. View »
  • Electrify Your Classroom with a Discussion on the War of the Currents, Past and Present When great scientists of the 19th century squabbled before the public, both types of electric current flowed. George Westinghouse and Nikola Tesla battled Thomas Edison over whether AC or DC would carry power across the grid in the US. View »
  • Naming the Elements Have you ever wondered how the elements of the periodic table were named? Where did the name tantalum come from? What very small town has 4 elements named after it? What are the transfermium wars? View »
  • Equilibrium and Milk of Magnesia Rainbow This demonstration shows a colorful reaction that is a good introduction to Le Châtelier’s principle, solubility, stoichiometry, neutralization reactions, and reaction rates. View »