Curated OER
Investigate Science Using Crayfish
Young scientists discover the importance of scientific investigation by observing live crayfish. They carefully observe the patterns of crayfish in different environments. Then they discuss their conclusions and define what all living...
Curated OER
The Trouble with Crayfish
Fourth graders compare an ecosystem before and after they introduce crayfish to that ecosystem. For this ecosystem lesson plan, 4th graders see what happens when you introduce a non native animal to a habitat. Students then make...
Curated OER
Stream Watch
Students discuss why it is important to take care of streams, what is non-point source and point source pollution, what are some causes of pollution in streams, and what can we do to prevent some of these causes of pollution? They steam...