Atoms march down like Space Invaders — fire each one's outer-shell electrons, its periodic group, or the ion it forms, while shielded noble gases need the 🛡 key.
A free, no-signup, no-ads science game for Grades 5–7 — predict what will happen, watch the real result, and see why. Explore all science games or more chemistry games.
More like this: Atoms & MoleculesPhysical or Chemical?Solubility
What does Element Defense teach? Element Defense is a Chemistry game: Atoms march down like Space Invaders — fire each one's outer-shell electrons, its periodic group, or the ion it forms, while shielded noble gases need the 🛡 key. Atoms, reactions, acids and bases — what matter is made of and how it changes.
What grade is Element Defense for? Element Defense is built for Grades 5–7 (ages 10–13). Every level follows predict → observe → explain, so younger players can reason qualitatively while older ones work the numbers.
How do you play Element Defense? Make a prediction, run the experiment on screen and watch the real result, then explain the rule you saw. A wrong prediction is never a game-over — the game shows what actually happened and lets you try again.
Is Element Defense free? Yes. Element Defense is free, with no ads and no sign-up, and runs in the browser on a phone, tablet or computer.