CODAP is free educational software for data analysis. This web-based data science tool is designed as a platform for developers and as an application for students in grades 6-14.
Our agricultural system is made up of interconnected resources. The availability of these resources affects how much food we can produce.In this module, you will explore the resources that make…
Explore how potential energy created by particles of varying charge is converted to thermal energy.
Explore the difference in attractive forces between polar and nonpolar molecules.
Investigate the difference in attractive force between polar and non-polar molecules by “pulling” apart pairs of molecules. While all molecules are attracted to each other, some attractions are stronger than…
Compare the change in potential energy when you separate molecules from each versus when you break molecules apart.
Before Ernest Rutherford’ s famous gold foil experiment in 1911, it was not known how the positive part of the atom was distributed. His experiment showed that if you shot…
This model shows the combined effects of heat capacity and conductivity.
The heat conductivity of a solid material defines how fast heat will flow through it. You can probably think of several everyday examples of materials with high (fast) conductivity or…
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…
Heat flows through solids at rates measured by their conductivity. The rate of heat flow is also proportional to the thickness of the material. This model compares the rate of…