Adjust amounts of ionic charges in this simulation to see how water molecules react to polar substances in solution.

Watch an animation of atoms and molecules colliding that shows how these particles combine during chemical reactions. Change levels of energy to see how reactions are affected.

View this collection of simulations to gain a better understanding of how chemical reactions happen.

Observe a visual representation of the equilibrium of products and reactants in chemical reactions. Record data while the reactions are taking place and print out a report afterwards.

Observe an explosion on a molecular level. Understand how explosions can do work.

Explore the purpose of catalysts in chemical reactions and how they affect the reaction pathways.

View this simulation to observe the process of smaller particles moving through a semipermeable membrane. Temperature is adjustable. [Must download the simulation to engage in the activity]

View this simulation of DNA Hybridization.

Adjust the strength of interatomic interactions in this virtual bullet experiment. Observe how the adjustments in strength affect the material in the experiment.

Adjust variables in this shock wave propagation simulation. Observe the density and pressure waves.

Adjust the incident ion variables in this simulation to observe the sputter yield from the target.

Observe the movement of neon atoms in a quadruple nanotube joint.

View a hypothetical model of gears created be intermolecular interactions.

Observe the intermolecular interactions of a hypothetical multi-gear nanoscale machine.

Observe the sorting process of a hypothetical nano purification machine.

Observe how molecules can be sorted in a hypothetical nano conveyor-belt mechanism.

Observe the movements of a molecular planetary gear.

Use these virtual vapor pressure experiments to learn more about gases' reactions in various scenarios.

Adjust frequency, amplitude, and perturbation in this simulation to graph the trajectory of a mass at the end of each pendulum.

The voltage in AC circuits oscillates at a rate known as the frequency. With an oscilloscope, see and measure the length of time between signals, and calculate the frequency of an AC signal.

Find out how the current in a circuit can be impeded by three types of circuit components.

See how oscillations in an AC circuit don't always rise and fall together.

There are three different measures of AC voltage. Here, consider the peak voltage to measure it.

Discover three main measures of AC voltage.