Curated OER
Circles in the Landscape: Irrigating Oklahoma Crops
How do you grow crops in a area with insufficient rainfall? Why you irrigate, of course. Class members investigate irrigation systems by designing a system of their own. After examining irrigation related concepts, vocabulary terms, and...
Curated OER
Are You Thirsty? The Effects of Pollution on Drinking Water
Discuss the availability of clean, plentiful water and the causes of water pollution. In groups, sixth graders discuss problem-solving methods for keeping water clean. They explore the function of water treatment plants and perform...