Build an oscillator circuit with an operational amplifier! This simple circuit illustrates several important circuit concepts. The light will blink at a frequency determined by the values of the resistors and capacitors. You could also observe the oscillation with an oscilloscope if you have one, but an LED is cheaper. Skills and concepts explored: Electricity […]

Demonstrate the principle that a circuit must be complete for current to flow. Try to maneuver the wand along the wire without touching! If you touch, the circuit is completed and the light turns on.             Circuit in the off (left) and on (right) positions Skills and concepts explored: Electricity […]

Light up an LED in one circuit without even touching the circuit with the battery! The completed wireless system in operation! Skills and concepts explored: Electromagnetism Induction Electricity and Circuitry Recommended Age Group: 6th grade and up. Instructions Presentation WirelessEnergyTransfer from Betty Lise Anderson on Vimeo. A brief video of the project in action!

Build your own solar cooker out of household materials! The completed solar cooker! Skills and concepts explored: Heat Reflectivity Solar Energy Recommended Age Group: 4th grade and up Instructions

Learn a simple and low cost way to filter contaminants from water. CAUTION: Filtration alone does not make water safe to drink! The completed filtration unit! Skills and concepts explored: Filters Bacteria and Pollutants Assisting developing countries through technology Recommended Age Group: Any! Instructions Presentation

Build this “train” and watch it shoot down the track! Our battery powered train! Our train located at the start of the track! Skills and concepts explored: Electricity Induction Magnetism Recommended Age Group: 4th grade and up Presentation Instructions VIDEO MISSING

Finished LED Flashlight Skills and concepts explored: Electricity LEDs Resistance Recommended Age Group: 4th grade and up Internal circuit of flashlight Instructions 1 LED Flashlight Powerpoint  

Make the diver descend by squeezing the bottle. Just like a submarine! Completed project (the diver is at the bottom!) Skills and concepts explored: Pressure Vacuums Recommended Age Group: Any! Instructions (One-Page) Instructions   Check out these links: Wikipedia: Cartesian Diver Diver made from a drinking straw Ketchup Packet Diver Diver with costume Diver from […]

Build a simple spectrometer from a cereal box and an old CD. This project based on http://www.cs.cmu.edu/~zhuxj/astro/html/spectrometer.html A group of students using their spectrometers to view burning salt Skills and concepts explored: Optics Spectroscopy Light Recommended Age Group: Any! Template Presentation

Make your own 3D pictures and view them! Finished product! Skills and concepts explored: Optics 3D Vision Recommended Age Group: Any! You will need 3D glasses for this project – available for ~$1 online! Presentation