This lab allows students to create multiple versions of various atoms and record the number of protons, electrons, and neutrons in a table.

There are two kinds of attractive forces shown in this model: Coulomb forces (the attraction between ions) and Van der Waals forces (an additional attractive force between all atoms).

Convection refers to transfer of heat by a fluid material (such as air or water) moving from one place to another. The convection is forced if the fluid motion is caused by a fan or a pump while natural convection is the result of density differences.

What causes an area to have poor air quality? Use this model to explore the connections between pollution sources, weather, geography, and air quality.

Convection refers to the transfer of heat by a fluid material (such as air or water) moving from one place to another. Warm air is less dense than cold air, so it rises and cold air sinks.

The rate of heat flow between two objects is proportional to their difference in temperature. One experiences this every day, with stoves, outdoor weather and touching things. If you touch something that’s the same temperature as your hand, there’s no heat flow at all.

Explore what happens when a force is exerted on a tire material. There are many different types of materials. Each material has a particular molecular structure, which is responsible for the material's mechanical properties.

This simulation visualizes a molecular structure of plastic. Each material has a particular molecular structure, which is responsible for the material's mechanical properties.

  This simulation combines oscillation of a simple pendulum and a spring. Changing such paramenters as mass, lenght, damping or starting angle, students can explore the motion of the system. 

  This simulation visualizes oscillation of a mass on a spring. Changing mass, lenght or damping, students can see the effect on the motion.