We made lab safety costumes with lab coats (old dress shirts) and goggles. We talked about lab safety and lab safety clothing.
We read the poem:
Little Willie was a Chemist,
Little Willie is no more.
What he thought was H2O was H2SO4.

We build a handful of small molecules, including H2O (water) and H2SO4 (sulferic acid). We talked about the lab equipment in An Introduction to Model Organisms, including lab notebooks, pipettes, PCR machines, centrifuges, squirt bottles, labeling tape, Kimwipes, microscopes and autoclaves.

The next day, while we drew with chalk (which is mostly calcium carbonate) outside Zev asked what it was made of so we talked about how calcium carbonate is ionic.

Materials – an organic chemistry model set, the poem Little Willie was a Chemist, chalk, dress shirts, goggles, plastic pipettes, and the tiny book An Introduction to Model Organisms.

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