Kaloko-Honokōhau National Historical Park in Hawai'i is an ideal place to study the Electrical Conductivity (EC) of natural waters. The EOC has developed a backpack available for loan from the park that contains everything you need to have up to 30 students work in seven small teams with professional grade equipment. There is safe and easy access to rainwater, groundwater, brackish water from an anchialine pool, and seawater at the park.
 

Teacher Resources:

• EC Backpack Description
• EC Backpack Instruction Card
• Tips for Teachers
• EC Graph Template
• EC Article
• EC Meter Reference Sheet
• Easy Salt Study
• Teacher Feedback Survey

Related Resources:

• The Waters of Kaloko-Honokōhau Self-Guided Nature Trail Guide
• Kaloko-Honokōhau Reference Materials

Park Contact info for checking out the backpack: https://www.nps.gov/kaho/contacts.htm

For more information, contact: Andrew Warnock