We found 108 reviewed resources for conservation of charge
Efficiency of an Electromechanical System
6th - 8th CCSS: Designed
How efficient is a motor in a LEGO set? Future engineers conduct an activity where a LEGO motor-generator system raises an object to a specified height. They then show what they learned and use their measurements to calculate the energy...
What is the Best Insulator: Air, Styrofoam, Foil, or Cotton?
3rd - 5th
Students investigate the properties of insulators by attempting to keep a cup of water from freezing, and once it is frozen, to keep it from melting. They conduct the experiment, record and analyze the results, and answer discussion...