Curated OER
Leaf Stomata as Bioindicators of Environmental Change
Students, in this experiment, collect leaves from two species of trees and the stomatal index on the upper and lower epidermis of each leaf be determined.
Curated OER
Food Chains and Webs--- "What's for dinner?"
Students study food chains and how the organisms are linked. In this investigative learning exercise students answer food chain questions, and fill out several worksheets.
Curated OER
Photosynthetically Available Radiation (PAR) Measurements Part 1: Calculating the Solar Constant using a TI-8
Twelfth graders are introduced to the term Photosynthetically Available Radiation. In groups, they participate in an experiment to determine how ecosystems survive the conditions in the Arctic. They calculate the amount of solar energy...