Centers for Disease Control and Prevention
Diseases
During a cholera outbreak, scientists presented two theories; one theory was based on miasma and the other on germs and contaminated water. The lesson looks at the scientific process for finding the real culprit.
Discovery Education
Perfectly Decomposed!
We all know someone who won't eat the banana with a brown spot, the grape with a dimple, and the apple with a bruise. Scholars use different fruits to explore what happens when fruits really start to decompose. They set up an experiment...
Centers for Disease Control and Prevention
Hand Washing Experiment
An engaging experiment allows scholars to understand why the recommendation is to wash for 20 seconds with soap and water — while making them aware of their own habits!
Curated OER
Peregrine Falcon
Young environmentalists study the effects that pesticides have on birds, such as the peregrine falcon. They also look at predator/prey interactions. Some wonderful in-class activities accompany an inventive lesson. After an activity that...
Curated OER
When A Car Coughs. . .
Budding scientists collect and compare particulate exhaust from four different vehicles. They discuss how cars contribute to air quality. To get the most mileage out of this resource, have learners complete the optional step 5, in which...
National Wildlife Federation
The Amazing Adventures of Carbon: How Carbon Cycles through the Earth
Here's a stat for your pupils: 18 percent of the human body is carbon! Part 10 in the series of 12 takes pairs on an adventure through the carbon cycle. After a class reading about carbon, pairs read and choose their own adventure...
Teach Engineering
Engineering Brainstorming
Here is a instructional activity that offers a great hybrid of forming new skills and using current knowledge to come up with a plan. The class brainstorms information they would need to know or already know about hybrid vehicles. They...
Teach Engineering
Flame Test: Red, Green, Blue, Violet?
Let the true colors shine through. Pupils conduct a flame test to identify an unknown element. Class members calculate and prepare specific molarity solutions of three chemicals. Using their observations of the colors emitted, they...
Curated OER
Urban Ecosystems 4: Metabolism of Urban Ecosystems
Cities are compared to living, breathing, metabolizing organisms. Fourth in a five-part series of lessons, this one focuses on the flow of materials through a city. Links to interesting websites and images make your delivery of...
Curated OER
Recycling Survey
How many people really recycle recyclables and how do they feel about it? High schoolers create a survey to find out. Once they agree on what questions to include, they each interview four people outside of the classroom. They combine...
Orange County Water Atlas
Location, Location, Location…
Young geographers discover not only how to read and recognize coordinates on a map, but also gain a deeper understanding of latitude and longitude and how climate changes can vary significantly across latitudes.