Curated OER
Radioactive Simulations
Young scholars simulate radioactive decay and nuclear power using an on line interactive web site. In this on line lesson plan, students monitor radioactive isotopes and record the activity of a particular element as the decay...
American Institute of Physics
African Americans and the Manhattan Project
A lesson plan about the Manhattan Project will explode young physicists' understanding of the racial attitudes in the United States during and after World war II. Groups select an African American scientist or technician that worked on...
College Board
2004 AP® Environmental Science Free-Response Questions
Radioactive isotopes have a wealth of uses, but their waste may cause some concern. One of four free-response questions challenges learners to devise a waste removal strategy for medical radioactive substances. Other questions address...
NASA
Analyzing Tiny Samples Using a Search for the Beginning Mass Spectrometry
Teach the basics of mass spectrometry with a hands-on lesson. The fourth in a series of six lessons explores how mass spectrometry measures the ionic composition of an element. Learners then compare and contrast relative abundance and...
NASA
MASS, MASS – Who Has the MASS? Analyzing Tiny Samples
What is it worth to you? A hands-on instructional activity asks groups to collect weights of different combinations of coins and calculate weighted averages. They use the analysis to understand the concept of an isotope to finish the...
CK-12 Foundation
Marie Curie's Classroom
What makes some elements stable and others radioactive? Scholars adjust the number of protons and neutrons in an element then observe its decay. The simulation includes a graphical representation and the chemical formula, as well as...
Virginia Department of Education
Radioactive Decay and Half-Life
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....
Curated OER
Radioactive Dating
In this radioactive dating learning exercise, students use their reference guide in their text book to find the half-lives of 4 isotopes. They use a decay chart to help determine the half-lives and age of given bones and samples of...
Curated OER
Radiochemistry
In this radiochemistry instructional activity, students read about how scientists learn more about elements using radioactive isotopes. Students answer three critical thinking questions about the reading and radiochemistry.
Curated OER
Half-Life Problems
In this half-life worksheet, students calculate the half-life of isotopes, they find masses of isotopes remaining after specified times, and they find particular amounts of time needed to pass for given masses of isotopes to decay.
Curated OER
Geological History Vocabulary
In this geological history worksheet, students define 17 terms associated with index fossils, nuclear decay, and radioactive decay.