Water is one of the most important substances on earth and all living things depend on water to survive. In humans, water makes up 60% of adult bodies and without water humans cannot survive longer than a few days depending on activity and environmental conditions. Because water is such a vital resource we need to understand where it comes from and how to make sure we will have enough drinkable water in the future.
ESS2-2 Earth’s Systems
Describe and graph the amounts of salt water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth.
https://www.nextgenscience.org/pe/5-ess2-2-earths-systems
ESS3-1 Earth and Human Activity
Obtain and combine information about ways individual communities use science ideas to protect the Earth’s resources and environment.
https://www.nextgenscience.org/dci-arrangement/5-ess3-earth-and-human-activity
Available at: http://works.bepress.com/cassandra-armstrong/14/