Locked · The chemistry lessons

The chemistry lessons opens with full access.

The games teach by doing. These pages spell out the why in writing.

One purchase opens every game and all 118 elements for a year. No subscription, and nothing renews. Buying is what creates the account; there is no free one to make.

$59One year · one payment

About what one private tutor session costs.

$79 for two years.

Try it for 30 days. If it isn’t working out, one email to support@periodicmole.com and we refund it in full.

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Not the one paying? .

What opens

Every game, all 118 elements.

What one purchase is.

Account
Created at purchase. There is no free account to make.
Term
One year. Two years is $79. It ends on its own; nothing to cancel.
Elements
All 118, in every game and in review. The free games stop at element 12.
Review
Spaced-repetition review behind the games, timed to bring each element back before it fades.
Refund
30 days, in full, by email.
Who pays
Usually a parent. The note under the button says what this is and links back here.

Cobalt

“Twelve elements is a warm-up. I play with all 118.”

Not ready to buy? Bond Forge is free to play with a starter set of elements, no account needed. Play Bond Forge free.

Open all of it.

Try it for 30 days. If it isn’t working out, one email to support@periodicmole.com and we refund it in full.

Questions a parent asks

Is this a subscription?
No. One payment covers one year, or two years for $79. Nothing renews, and no card stays on file.
What does it open?
Every game, all 118 elements, the review deck behind them, and the lesson pages.
What if it isn't helping?
Email support@periodicmole.com within 30 days and we refund the full amount.
Will it match the class?
It covers general high-school chemistry, aligned to the NGSS chemistry standards. It is not tied to any one state's course or textbook.
Can a brother or sister use it?
One purchase is one account, and progress is per account. A second student needs a second purchase.