Adjust a reaction until atoms in match atoms out — the rule the rest of chemistry builds on.
Chemistry practice
Balance the reaction before the cauldron does
A lab you can actually touch — not a periodic table to memorize.
The Chemistry Cauldron turns balancing equations, limiting reactants, and pH into a hands-on lab instead of a worksheet: change one ingredient, watch the reaction respond, and defend your answer with the evidence the lab shows you.
No account to start. No child data collected unless a parent signs in for reports.
What you'll practice
Real moves, not a quiz wall
Figure out which ingredient runs out first and stops the reaction.
Tune acids, bases, catalysts, and heat, and predict how the reaction shifts.
State what the evidence proves — and what it doesn't — before moving on.
Questions parents ask
Before you start
No. The free room opens with no sign-in. A parent can sign in separately to see progress reports — nothing is required to start playing.
No — it's a fully simulated cauldron lab. There's no real chemical handling involved.
The Chemistry Cauldron targets roughly grades 4–9, with easier and harder difficulty bands inside the same room.
Not on the free public room. Data is only stored if a parent explicitly signs in to enable progress reports.
Chemistry Cauldron