Need to improve fraction skills? Try the new Fraction Matcher sim. Match shapes and numbers to earn stars in this fractions game. Students can challenge themselves at different levels, collecting stars as they improve their fraction skills.
We just published a new Collision Lab sim that includes improvements based on our research and teacher feedback. With the new Introduction tab, it’s now easier to explore one dimensional collisions. The Advanced Tab still offers full data collection and 2D collisions.
We’re excited to publish another new simulation on fluid dynamics, Fluid Pressure and Flow. Explore pressure in the atmosphere and underwater. Reshape a pipe to see how it changes fluid flow speed. Experiment with a leaky water tower to see how the height and water level determine the water trajectory.
We’re excited to publish another new simulation, Under Pressure, where you can explore pressure under and above water. See how pressure changes as you change fluids, gravity, container shapes, and volume.
No sim design is ever final! We are always looking for ways to
improve them. For example, we recently updated the molecule images
in the Reactants, Products and Leftovers sim to match the images that are used in other PhET chemistry sims. We hope this change will allow more continuity in your
curriculum.
We’re excited to publish our latest new simulation, Normal Modes:
Play with a 1D or 2D system of coupled mass-spring oscillators. Vary the number of masses, set the initial conditions, and watch the system evolve. See the spectrum of normal modes for arbitrary motion. See longitudinal or transverse modes in the 1D system.
Learn about Beer’s Law with this new simulation:
“The thicker the glass, the darker the brew, the less the light that passes through.” Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer!
Check out the new tab, “Real Molecules,” in the Molecule Shapes or Molecule Shapes: Basics sims. By clicking on the tab, you can compare the VSEPR (Valence Shell Electron Pair Repulsion) model to real molecules.
Teachers, we need your input!
We have been experimenting with the addition of a new “Teacher” menu in our simulations. See “Teacher” along the upper left hand navigation in Molecule Shapes or Molecule Shapes: Basics. There you can change the background color to white.
Can you let us know how you might use this new Teacher menu and/or “white background” option in the comments below?
Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation!
