Curated OER
Stratospheric Ozone
Students explore about the structure of Earth's atmosphere and about the stratospheric ozone. They discuss how it is produced and destroyed, where it is located, why it is important, and how it is changing. Students investigate about...
Teach Engineering
How Effective is Your Sunscreen?
Protect skin from UV radiation! Groups design and conduct an experiment to test the effectiveness of UV safety products. The groups collect the data from the experiment and prepare a lab report. In the second day of the activity,...
National Institute of Open Schooling
Air Pollution
Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...
Curated OER
USING YEAST AS AN ULTRAVIOLET LIGHT MEASUREMENT TOOL
Young scholars realize the importance of organisms as standards of measurement and experimentation.The first lab is a simple survival curve that demonstrates the effects of UV light on cells. The second lab looks at repair mechanisms of...
Curated OER
Using Yeast as an Ultraviolet Light Measurement Tool
Students accurately measure the relationship between radiation dose and either survival or some genetic event such as mutation or recombination. They investigate the damage that was done to the DNA molecule as a result of exposure to...