CollisionsTM is a system of interconnected digital chemistry games designed to give middle and high school students a deepened understanding of fundamental chemistry concepts through play.

Currently available on iPad, Android tablets, and the web via subscription or try Atoms for free!

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WEB VERSION AVAILABLE FOR DESKTOP BROWSERS.

Filling atomic orbitals with electrons in the correct fill order to build an Si atom
Filling atomic orbitals with electrons in the correct fill order to build an Si atom

Atoms Game
Build a series of atoms of increasing radii.

Concepts:
  • Proton # = electron #
  • Electron configuration
  • Periodic trend: Atomic Radii
  • Periodic trend: Electronegativity

Removing an electron from the outer orbital of Na atom to create Na+ cation

Ions Game
Add or remove electrons to form target ions.

Concepts:
  • Cation and anion formation
  • Octet rule
  • Ionic radii
  • Ionization energy
Removing an electron from the outer orbital of Na atom to create Na+ cation
Bonding hydrogen atoms with oxygen to form an H2O molecule
Bonding hydrogen atoms with oxygen to form an H2O molecule

Covalent Bonding Game
Build molecules to match target bond polarities & geometries.

Concepts:
  • Octet rule
  • Single, double & triple bonds
  • Bond polarity
  • VSEPR geometries
Bonding K cations with a P anion with correct ratio to form an ionic compound

Ionic Bonding Game
Use ions to build compounds of target ratios.

Concepts:
  • Attraction vs. repulsion
  • Net neutrality
  • Cation to anion ratio
Bonding K cations with a P anion with correct ratio to form an ionic compound
Building a non-polar tetrahedral CF4 molecule to observe an LDF intermolecular force
Building a non-polar tetrahedral CF4 molecule to observe an LDF intermolecular force

IMFs Game
Use single atoms or build molecules to form target IMFs.

Concepts:
  • Polar vs. nonpolar molecules
  • London Dispersion Forces
  • Dipole-Dipole
  • Hydrogen Bond
Removing hydrogen from HCl and donating the H to water to make hydronium H30+

Acids & Bases Game
Add & remove protons to create target ions & molecules.

Concepts:
  • Brønsted-Lowry acids & bases
  • Strong vs. weak acids
  • Polyprotic acids
  • Neutralization reactions
  • Amphoteric substances
Removing hydrogen from HCl and donating the H to water to make hydronium H30+

Developed with teachers in mind

Use Collisions your way
Designed as modular and interconnected spaces, Collisions can be used flexibly in a flipped classroom, to introduce a lesson, and for extra practice or homework.

Reach the entire class
Collisions couples immersive play with immediate and meaningful feedback to engage students of varying skill and interest levels.

Access meaningful data
Coming soon, a teacher portal will offer performance data to quickly identify students’ successes and challenges as well as their progress.

Free teacher resources

The Game Guides provide an overview of each Collisions content area and highlight the chemistry concepts integrated into the game.

The Student Quests are post-gameplay activities designed to extend student learning and draw connections between Collisions and the chemistry classroom.

Reviews and awards