What Do Concentrations Mean?
Students investigate the concept of climate gases and practice using the appropriate measurement terms. The lesson includes information that is used by the teacher to conduct class discussion or as a source of background for students.
3 Views 0 Downloads
Using the Spectrophotometer to Analyze a Mixture
General chemistry classes practice spectroscopy. They grasp the relationships between wavelength, absorbance, and solution concentration. Additionally, they gain valuable practice using laboratory equipment such as burets and pipettes....
9th - 12th Science
WET Science Lesson #5: Pass the Salt Please! (How Road Salt Affects Wetlands)
As an anticipatory set, biologists listen to the story of Ruth Patrick, a scientist who used algae to detect water quality. They observe a demonstration of osmosis and diffusion. In their lab groups, they place Elodea stalks in...
7th - 12th Science
New Review What Is Energy?
Kids sure do seem to have a lot of energy, but what exactly is energy? A video explains many different types of energy, starting with potential and kinetic. It highlights the most common forms of potential energy, including nuclear,...
5 mins 9th - 12th Science CCSS: Adaptable
How to Sequence the Human Genome
Every human is unique, from our thoughts and actions to our DNA. Scientists spent billions of dollars and over a decade to map the human genome, the sequence of DNA within one human being. Since the project was completed ten years ago,...
5 mins 9th - Higher Ed Science CCSS: Adaptable
What Triggers a Chemical Reaction?
Chemical reactions are happening all around us every second of every day, but what exactly causes these changes to occur? Using easy-to-understand analogies, this video explains how the concepts of enthalpy and entropy determine the ways...
4 mins 9th - Higher Ed Science CCSS: Adaptable
A Call to Invention: DIY Speaker Edition
What if I said that you can build a homemade speaker out of a potato chip? Bestselling author and do-it-yourself expert William Gurstelle shows you how in his brief presentation at TEDYouth 2012. He encourages young people to be creative...
7 mins 4th - 12th Science CCSS: Adaptable