Eighth graders explain half life. In this hands on activity, 8th graders use licorice to explain radioactive decay and graph their results.

Students participate in a lab in which they are introduced to carbon-dating. In groups, they use the holes of paper from a hole puncher and determine the rate of retention after shaking coins onto the same area. They record their...

In this radon worksheet, students read a short newspaper article about radon. Students complete 7 pages of exercises about the article. Students answer questions, define words, conduct a survey and tally the data.

[Free Registration/Login may be required to access all resource tools.] How scientists can use radioactive decay to find the age of certain materials.

The Earth has been in a state of continual change since its formation. The major part of this change, involving volcanism and tectonics, has been driven by heat produced from the decay of radioactive elements within the Earth. The other...