Resources by PhET Interactive Simulations University of Colorado Boulder
Displaying 21 - 30 of 32
Molarity
This simulation explores the factors which determine the concentration of a solution. It illustrates the relationships between moles, litres and molarity by adjusting the amount of solute and solution volume.
The moles of solute and the volume of solution (water) can be changed using sliders to make...
Molecule Shapes Basics
This simulation allows students to explore molecule shapes by building molecules in 3D and seeing how the molecule's shape changes as atoms are added.
It can be used to demonstrate that:
*The molecule shape is due to repulsions between atoms.
*The bonds are not fixed in place, but can rotate...
Molecules and Light
This simulation can be used to explore how light interacts with molecules in our atmosphere.
Sample learning objectives include:
*Explore how light interacts with molecules in our atmosphere
*Identify that absorption of light depends on the molecule and the type of light
*Relate the...
Ohm's Law
This simulation demonstrates how Ohm's law relates to a simple circuit. The voltage and resistance can be adjusted to see how this affects the current. The sizes of the symbols in the equation change to match the circuit diagram.
pH Scale *suitable for home teaching*
This simulation allows students to test the pH of substances like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. It can be used to visualise the relative number of hydroxide ions and hydronium ions in solution, switch between logarithmic and linear scales, and investigate whether...
pH scale basics
With this simulation students can test the pH of everyday liquids such as coffee, spit, and soap to determine whether each is acidic, basic, or neutral. They can also investigate how adding more of a liquid or diluting with water affects pH. Sample learning outcomes include:
- Determine if a solution is...
To help students engage in science and mathematics through inquiry, PhET simulations were developed to allow students to investigate cause-and-effect relationships and answer scientific questions through exploration of the simulation.
Several tools in the simulations provide an interactive experience:
...Photoelectric Effect
In this simulation students can see how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.
[b]Sample Learning Objectives include:[/b]
*Visualize and describe the photoelectric effect experiment.
*Predict the results of experiments...
Reactants Products and Leftovers
The simulation can be used to:
*Relate the real-world example of making sandwiches to chemical reactions.
*Describe what limiting reactant means using examples of sandwiches and chemicals at a particle level.
*Identify the limiting reactant in a chemical reaction.
*Explain the Law of...
Resistance in a Wire
This simulation looks at resistance in a wire. Students can change the 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 as the variables are changed.