Kenan Fellows
Using Water Chemistry as an Indicator of Stream Health
Will this water source support life? Small groups test the chemistry of the water drawn from two different sources. They then compare the collected data to acceptable levels to draw conclusions about the health of the source. The...
Kenan Fellows
Determining Stream Health by the Diversity and Types of Benthic Organisms
How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local streams....
Kenan Fellows
Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of Stream...
Teach Engineering
Heart to Heart
Begin a unit on the heart, the parts and the function of the heart, and about heart disease with a resource that includes a lecture, a PowerPoint presentation, and research information. The lesson is the first of a four-part series and...
Curated OER
Using Ionising Radiation in Medicine
This is an information-intense presentation for any science class you might be teaching that will study ionising radiation. The material is specific to cancer diagnosis and treatment, and one of the forty-two slides also touches on using...
Curated OER
Keeping Warm
There are five separate lessons about heat in this collection of slides. Young scientists learn how to use a thermometer to measure temperature, and they experiment with insulators. You can use one of these lessons each day for a full...