PBS
Nh Pbs: Nature Works: Estuaries
Learn more about estuaries when you visit this informative site. This resource provides locations of and weblinks to estuaries in the United States.
American Chemical Society
Inquiry in Action: Changing the Density of a Liquid: Adding Salt
In this activity, students will see that a carrot slice sinks in fresh water and floats in saltwater. Considering the placement of the carrot slice in water and salt water, students will infer that the density of salt water must be...
TeachEngineering
Teach Engineering: One World Ocean
In this activity, students learn about ocean currents and the difference between salt and fresh water. They use colored ice cubes to see how cold and warm water mix and how this mixing causes currents. Also, students learn how surface...
Other
Crocodilian Species List
This website offers in-depth information and photos on all living crocodilian species.
University of Utah
University of Utah: Genetics Science Learning Center: Stickleback Evolution
Compare the freshwater stickleback with its saltwater relative and trace the evolutionary changes of the fish. Includes a lecture by Dr. David Kingley, as well as an animation showing the evolution of the stickleback in an Alaskan lake.
State of Florida
Florida Department of State: State Symbols
Learn about all of Florida's state symbols on this colorful page. Click on the symbol for a larger picture and more information.
NSTATE
New Hampshire State Symbols
Find a wealth of information about the New Hampshire state symbols. Click on each word to be taken to a page with a picture, information, and links to much more about the symbol. Includes year of adoption.
American Institute of Biological Sciences
Action Bioscience: Seawater Desalination: Panacea or Hype?
An article and resources for research and teaching that explains how technologies are being used to desalinate ocean waters to be used for various municipal, industrial, and domestic purposes including a means to provide fresh water to...
Environmental Education for Kids
Eek!: Water Wonders
This site from the Environmental Education for Kids contains colorful and detailed information on water resources. Site covers fascinating tips and facts, as well as engaging quizzes on the wonderful world of water. Best suited for...
Utah STEM Foundation
Utah Stem Action Center: Floating on the Great Salt Lake
Through exploring the phenomenon that it is easier to float on salt water than on fresh water, students will develop a conceptual model for molecules and how the arrangement of molecules affects density.
PBS
Nh Pbs: Nature Works: American Avocet
Learn more about the American Avocet through this informative site. This resource features characteristics, reproduction, range, food, and behavior of this fascinating bird, as well as an audio clip of the bird's song.
Other
University of Texas at Dallas: Why Is the Sea Salty?
A clear and concise explanation of why some of the earth's waters are salty and others are not.
American Museum of Natural History
American Museum of Natural History: O Logy: Stuff to Do: Density of Salty Water
An experiment to test what happens when ocean water hits a freshwater estuary. Each step is demonstrated with photographs and the difference between salinity and density is explained.
Other
Gillett's Jewellers: Pearl Information
Pearl characteristics, differences between a cultured pearl and a shell-based pearl, and freshwater pearls are some of the topics featured on this page.
Science4Fun
Science4 Fun: Lakes
What is a lake? Learn about some famous lakes in the world and how they are formed.
Canadian Wildlife Federation
Hinterland Who's Who: Estuaries
Learn about estuaries, where the fresh water rivers meet the salt water of the oceans. The unique features of estuaries are explained, followed by a look into estuarine food webs. Next find out about the different plants and animals that...
Idaho State University
Idaho State University: Water Pollution
Explore water pollution in surface water and groundwater and investigate the treatments for both. Also, check out what happens when salt water infiltrates the fresh water sources.