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!
Try our new Molarity sim. What determines the concentration of a solution? Learn about the relationships between moles, liters, and molarity by adjusting the amount of solute and solution volume. Change solutes to compare different chemical compounds in water.
Energy Skate Park: Basics is the next sim in our Basics series designed specifically for our middle-school audience. In this sim, learn about conservation of energy with a skater dude! Explore different tracks and view the kinetic energy, potential energy and friction as he moves. Build your own tracks, ramps and jumps for the skater.
We’ve added another sim to our Basics series with the new Molecule Shapes: Basics sim designed specifically for our middle-school audience. In this sim, you will explore molecule shapes by building molecules in 3D! Find out how a molecule’s shape changes as you add atoms to a molecule.
Learning goals that Molecule Shapes: Basics addresses include:
We are launching our Basics series with the new States of Matter: Basics sim designed specifically for our middle-school audience. In this sim, students can heat, cool and compress atoms and molecules and watch as they change between solid, liquid and gas phases.
Learning goals that States of Matter: Basics addresses include:
Try our new Balancing Act Sim to learn about balance, rotational equilibrium and torque. Play with objects on a teeter totter. Then test what you’ve learned by trying the Balance Challenge game.
Try our new Sugar and Salt Solutions Sim to see what happens when sugar and salt are added to water. Pour in sugar, shake in salt, and evaporate water to see the effects on concentration and conductivity. Zoom in to see how different sugar and salt compounds dissolve. Zoom in again to explore the role of water.
Explore molecule shapes by building molecules in 3D! How does molecule shape change with different numbers of bonds and electron pairs? Find out by adding single, double or triple bonds and lone pairs to the central atom. Check out the molecule and electron geometry names, and watch how the bond angles change dynamically as you add and remove bonds and lone pairs from your molecule. How many different shapes can you make?
Coming Soon: A Real Molecules tab, where you can compare the VSEPR model to real molecules!
