What Is Radon?

Provide learners with the tools to further understand nuclear energy and isotopes. Young chemists investigate the components of an atom's nucleus, use symbols to represent various isotope forms, and use the percent abundance of an...

Through two investigations, life science learners determine whether or not yeast is alive. They perform tests for metabolism by providing sugar and observing if gas is produced as a byproduct. They incubate some of the sample for at...

When provided with multiple objects, how many ways can the class organize and display them based on predetermined factors? Assist class members with a handy activity—theoretically teaching them concepts to understand periodic...

Explain the importance of radioactive half-life as your high school biologists demonstrate the concept by performing a series of steps designed to simulate radioactive decay. Pupils use pennies to perform an experiment and gather data....

Lead your class in a fun-filled team activity that encourages collaboration while learning important concepts. Pupils actively participate in a discussion on the experimental design and the role of mirrors. They perform group activities...

Have you ever wanted to know the true structure of E.coli? Does the thought of peering into its "small world" sound exciting? Here is a lesson that allows pupils the ability to do just that. Blossoming microbiologists use...

Describes the characteristics of carbon and what an isotope is. Presents a chart of carbon isotopes listing nuclide symbol, atomic weight, half-life, and nuclear spin, as well as a second chart listing radioactive carbon isotopes....

The facts are in the numbers! Using atomic mass units, a video lesson explains the carbon atom as the reference mass. Building from that idea, the narrator describes the relative isotopic mass.

Learn the ins and outs of the particles we call atoms. A thorough video lesson describes the atom as a building block. The instructor discusses the periodic table as a reference to atoms and then explains the parts of the atom in detail.

How did life evolve from fish to four-limbed animals? Work through an interactive exploring transition animals and comparing their features to understand the transition. Making it even better, the interactive allows scholars to isolate...