Samples

Tap a sample to put it on the tray. The tray holds six.

3D graphics are not available in this browser.
The notebook, the graph, the lesson and the quiz still work. Use the sample buttons to run each test.

SampleNone

Mass?

Volume?

Density?

Water level?

In water?

Mass vs. volume

Every sample you measure lands here. Samples made of the same stuff fall on one straight line through zero. The slope of that line is the density.

What is density?

Tap a card to flip it.

100 mL cylinder starts at50 mL

Put samples in water by

Appearance

Text size

Contrast

Animation

Graphics

Reduced animation moves samples and the camera straight to where they go, with no splashes or ripples.

Keys: 1 to 4 change the mode, [ and ] move the camera between stations, S samples, T tare, W waterline, F drop or lower, U push under, M magnifier, X cut in half, Y mystery sample, Q hide values, N notebook, G graph, L lesson, C controls, P present, R reset, D light or dark, A text size, Esc closes.