Learn about the physics of resistance in a wire.

Test the pH of things like coffee, spit, and soap to determine whether each is…

See how the equation form of Ohm's law relates to a simple circuit.

Are all atoms of an element the same? How can you tell one isotope from another?

 

Explore the forces at work when pulling against a cart,and pushing a…

Light a light bulb by waving a magnet.

Watch your solution change color as you mix chemicals with water.

Build an atom out of protons, neutrons, and electrons, and see how the element…

Explore bending of light between two media with different indices of refraction.

"The thicker the glass, the darker the brew, the less the light that passes…

How do you know if a chemical equation is balanced? What can you change to…