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This lab activity from the Biotechnology Alliance for Suncoast Biology Educators (BASBE) demonstrates the concept of pH. It has an activity that allows students to evaluate the effectiveness of antacid tablets including developing a testable hypothesis. The lesson includes background information on...

This 2-page learning activity, from the Advanced Technology Environmental and Energy Center (ATEEC), asks students to perform chemical analysis on different substances (common items like shampoo, vinegar and baking soda can be used) according to standard procedural methods. Information on learning...

This experiment will demonstrate the effects of changes in the crystal structure of metals, particularly in high carbon steels and in the shape memory alloy Nitinol. Students will learn the effects of phase changes on shape in Nitinol and crystal structure changes on metal properties. They will also...

For the phasor phanatic, created Hsi Chen Lee of Johns Hopkins University, an applet that offers 4 ways to generate and observe continuous-time harmonic phasor sums and the corresponding fourier series.

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change. This simulation of a battery-resistor circuit is from the physics...

Circuit Construction Kit adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time.This simulation of a Circuit Construction Kit(AC+DC)is from the Physics Education Technology website of University of Colorado. Included are...

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them. This simulation of a Conductivity is from the Physics Education Technology website of University of Colorado....

Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. This simulation of a Gas Properties is from the Physics Education...

Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a wire.This simulation of a Resistance in a Wire is from the Physics Education Technology...

Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it. This simulation of a Signal Circuit is from the Physics Education Technology website of University of Colorado. Included are links...