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Chemistry 8
HS PSI-8 Nuclear Chemistry
Phenomenon
Radioactivity of Brazil Nuts Atomic Insights
How does the radioactivity arise?
How much of a problem is it? Give details!
Radioactivity
Alpha-, beta-, gamma-radiation
Radioactive decay
Measuring radioactivity
Nuclear energy
Humans and radiation
HS-PS1-8 Matter and its Interactions
Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy
released during the processes of fission, fusion, and radioactive decay.
Visuals of radioactivity
Vast amounts of energy involved
Performance Expectation
Grade: High School (9-12)
Prior Knowledge/Preview
Nuclear science introduction lnl.gov
Inquiry science
Printable activity
On-line activity
LAB experiments
Lab #1 Radioactivity background count
Lab #2 Radioactive half-life decay simulation Washington International School
Lab #3 Radioactivity in the home: smoke detector
Lab #4 Isotope activity American Nuclear Soc
Lab #5 Background & other radiation activities NASA
Lab #6 Cloud Chamber activity WIS
Aerospace CONNECTIONS:
Radioactivity in space American Nuclear Society
R/a in space exploration nuclear connect
Applications and examples:
Atomic clocks
Nuclear-powered satellites and probes
Radioisotope thermionic generators
Radiation dose and space exploration p23+ NASA