Curated OER
Tides in the Hudson
Students view an illustration of the Hudson River watershed and identify the bodies of water shown. They discuss what happens when fresh and salt water mix. Students view a teacher demonstration of the stratification of fresh and salt...
Curated OER
Pond Ecosystem Field Trip
Students investigate the environment by participating in a class trip. In this pond ecosystem instructional activity, students define a list of vocabulary terms associated with ponds such as invertebrate and metamorphosis. Students...