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River Catcher
Source Institutions
In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-210.png?itok=hbq5PeIA)
Is It Alive?
Source Institutions
What does it mean to be alive? Is a cactus alive? Is a seed alive? Is the air we breathe alive? What are the necessary characteristics?