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#### Pi Graph

The ExploratoriumAdd to list DetailsIn this activity, learners use a straight line to learn about circles. Learners measure and record the diameter and circumference of different sized cylindrical objects on a chart. Learners then...

#### Mass of the Earth

The ExploratoriumAdd to list DetailsIn this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth. Learners will calculate mass, volume, and density, convert units, and...

#### Mold Mole Molds

The ExploratoriumAdd to list DetailsIn this activity, learners make different shapes that hold exactly one mole of gas (air). Learners are provided a face that they must measure and use as one of the sides of their three-dimensional...

#### Throwing Pi

The ExploratoriumAdd to list DetailsIn this calculus activity, learners use a classic problem of geometrical probability to find an important mathematical constant (pi). Learners explore Buffon’s needle problem (which asks the...

#### How Big is Small

The ExploratoriumAdd to list DetailsIn this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water. This lab asks learners to record measurements and make calculations...

#### Sizing Up Temperature

The ExploratoriumAdd to list DetailsIn this activity, learners explore Charles' Law in a syringe. Learners collect volume and temperature data for five different temperature samples, convert Celsius to Kelvin, and plot the data...

#### Whose Fault Is It?

The ExploratoriumAdd to list DetailsIn this seismic simulation, learners play a "who-dunnit" game to explore earthquakes. Learners act as the source, carriers, and detectors of earthquake waves, while the group determines...

#### Atmosphere Composition Model

The ExploratoriumAdd to list DetailsIn this activity, learners create a model using metric measuring tapes and atmosphere composition data. Learners will investigate the major components of the atmosphere (nitrogen and oxygen) as...

#### Earth Walk

The ExploratoriumAdd to list DetailsIn this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most...

#### Scaling an Atom

The ExploratoriumAdd to list DetailsIn this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space! Learners will...