Ready-made sim

Sink or float

Rock and wood, read aloud, tap only. Predict, put them in, say why.

ScienceK-25 min as a quick checkOfficial

3 stages

This stage runs alone as a quick check; the rest run in LabPath

PredictRuns as the quick checkWhich one will float?2 min

TestPut them in the water.1 min

ExplainWhy does the wood float? One tap.2 min

Student preview · playable

PredictTestExplain

Sink or float

Whole sim in LabPathAssign it later, or start it live. No account until you publish.

Runs on2D view on a 4 GB Chromebook, iPad and phones from 360 px. Keyboard operable; state changes announced.

Misconceptions it can catch

Small things floatFloating is about what it looks like

Gate: Pick before the water. Tutor: on, technique help.