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In this activity, learners measure and calculate the amount of cubic feet various containers contain. Next, learners investigate cubic feet per second (cps), by carrying jugs in one second.

In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.

Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.

In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

Get all wrapped up in a lesson about skin!

In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

In this activity, learners make different shapes that hold exactly one mole of gas (air).

In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.