Chemistry
INTERACTIVE LABORATORY / 03

Molecular Geometry 3D Explorer

Predict and inspect molecular shapes from electron groups and lone pairs.

YOUR LAB NOTEBOOK0 / 13missions completed on this device
Molecular observatory
Drag to rotate · touch to explore
MoleculeCO₂
ShapeLinear
Bond angle180°
● H · white● O · red● C · slate● N · blue● F · green● B · tan◌ Purple · lone pairs
KEEP EXPERIMENTING

Explore all 13 chemistry labs

Free online molecular geometry simulator 3D

Molecular Geometry 3D Explorer: experiment guide

This browser-based 3d simulation helps you predict and inspect molecular shapes from electron groups and lone pairs. Designed for Grades 8–12, it turns an abstract idea into a model you can control, measure, reset, and test without signing up.

What you can investigate

Explore VSEPR, bond angles, lone pairs, molecular shape by changing the available controls and comparing the model’s visual and numerical evidence. Try one variable at a time, then combine changes to test a stronger explanation.

VSEPRbond angleslone pairsmolecular shape

How to use this simulation

  1. 1Read the mission and make a prediction before moving a control.
  2. 2Change one variable so its effect is easier to identify.
  3. 3Run the model and record a value, pattern, or visible change.
  4. 4Reset, test a different setup, and explain the result from evidence.

For students, teachers, and independent study

A typical investigation takes 7–12 min. Use it as a lesson demonstration, a guided inquiry activity, a homework experiment, or a quick review. The simulation runs in a modern web browser and does not require an account.

Level
Intermediate
Time
7–12 min
Format
3D simulation

Common questions

What does the Molecular Geometry 3D Explorer teach?

Predict and inspect molecular shapes from electron groups and lone pairs. The main ideas are VSEPR, bond angles, lone pairs, molecular shape.

Is the Molecular Geometry 3D Explorer free to use?

Yes. You can run the simulation online for free without creating an account.

How long does the activity take?

Most learners can complete one investigation in 7–12 min. You can repeat it to compare more variables or improve your explanation.