Porosity and Permeability Lab Activity


While sources of fresh water are usually associated with visible bodies of water such as lakes, rivers, ponds, and streams, the majority of fresh water on Earth is actually underground, collectively referred to as groundwater. Like fresh water found on the surface, groundwater can flow beneath the surface of the planet. Porosity and permeability are two factors that affect both how much groundwater may be found in a given area and the ability of this water to move beneath the surface as well as affect the degree in which certain environmental issues, such as water pollution, may impact different areas. With this kit you will examine three different substrates and determine their porosity. After finding the volume of water each substrate, you will compare the permeability of the substrates in order to determine how each may affect the ability of water to move beneath the surface.

Contains materials for 15 groups with teacher’s manual and study guide copymasters.

WARNING: This product can expose you to chemicals including Respirable crystalline silica, which is known to the State of California to cause cancer.  For more information goto http://www.P65Warnings.ca.gov.

Kit includes:


Medium gravel

Coarse sand

60 Plastic cups

15 Nails

Modeling clay

25mL Food coloring