Making Simulated Seawater
Source: Exploring Our Fluid Earth, a product of the Curriculum Research & Development Group (CRDG), College of Education, University of Hawai'i
[04-Jan-19] Scientists use models or simulations in many situations. Models are often used because it is difficult to obtain or work with the real thing that scientists want to study. Many activities use simulated seawater, which you will see called "salt water" in the activities. Simulated seawater is easy to make and can be standardized, unlike real ocean seawater, which may be difficult to collect and may vary in salinity. Salinity can be expressed in units of parts per thousand, ppt, which is equivalent to how many grams of salt are in 1,000 grams (g) of water.
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