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Difficulty 2 · Steady hands 8 cards

Some pouring and timing. Clear the bench first.

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Marshmallows Under Vacuum: Watching Trapped Air Win

Steady hands · bench date 16 Oct 2026

Difficulty 2/5 25 min Goggles

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Turning Copper Coins Green in Twenty Minutes

Steady hands · bench date 9 Oct 2026

Difficulty 2/5 30 min Goggles

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Yeast and Hydrogen Peroxide: Foam as a Measure of Enzyme Speed

Steady hands · bench date 2 Oct 2026

Difficulty 2/5 20 min Goggles

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Cream to Butter: Watching an Emulsion Turn Inside Out

Steady hands · bench date 16 Sep 2026

Difficulty 2/5 25 min Everyday

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Stacking Five Liquids: A Density Column You Can Drink

Steady hands · bench date 12 Sep 2026

Difficulty 2/5 30 min Everyday

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Dissolving an Eggshell in Vinegar, Gram by Gram

Steady hands · bench date 5 Sep 2026

Difficulty 2/5 30 min Everyday

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

Measuring the Foam: How Much Gas Baking Soda Really Makes

Steady hands · bench date 2 Sep 2026

Difficulty 2/5 25 min Everyday

Isometric glassware cross-section for difficulty 2: liquid height tracks difficulty and bubble count tracks run time

A Red Cabbage pH Ladder from Vinegar to Baking Soda

Steady hands · bench date 30 Aug 2026

Difficulty 2/5 35 min Everyday