Earth Science

Earth Science

• Drinking Water from the Sea

  

  The Earth’s surface is mostly covered with water. Almost all of that water is in the oceans... read more  

• Personal Seismographs

  

  How are intensity and duration of earthquakes are recorded? We'll show you how to build two versions of your own personal seismographs… read more  

• How Round Is The Earth?

  

  Find out how Eratosthenes made a pretty accurate calculation of the circumference of the Earth… read more  

• Oil Well Blowout Simulator

  

  This experience illustrates one of the major risks in drilling an oil well… read more  

• The Absorbency of Rock

  

  Did you know that rock can actually absorb liquid like a sponge? This experiment shows you how to prove it. read more  

• Build a Buckyball

  

  The atoms of a C₆₀ molecule are arranged in a shape that is the same as a football, or American soccer ball. Make a paper model of a this molecule… read more  

• The Permeability of Soil

  

  Test the soil where you live to find out if permeability is high or low… read more  

• Energy Efficiency

  

  Even in extreme climates the ground maintains a relatively constant temperature. See for yourself how this works… read more  

• The Brazil Nut Effect

  

  When you open a can of mixed nuts it often seems that the big nuts are on top. Find out how this happens… read more  

• Building the Hele-Shaw Cell

  

  See how sand grains of different sizes and shapes may naturally separate after being thoroughly mixed together… read more  

• How Long Is the Day?

  

  What time was sunrise today? When will the sun set tonight? Will those times be the same tomorrow? Are they the same everywhere in the world?… read more  

• Porosity

  

  How much open space is there in rock? In this experiment we check the porosity of gravel, sand and silt, the raw materials that sandstone is made of. read more  

• CO2 Absorption 

  

  Explore the possibility of removing carbon dioxide from the air and storing it in other places… read more  

• Earthquake Epicenters

  

  Click on the globe to see the epicenters of nearly 2000 earthquakes mapped between 1999 and 2003… read more  

• Geologic History of the Earth

  

  Watch a geologic history of the earth from 600,000,000 years ago to 200,000,000 years into the future… read more  

• Granular Mixture Explorer

  

  Explore the behavior of various granular mixtures using this virtual Hele-Shaw Cell… read more