1
How do geologists understand the Earth’s history? In part, they measure the age of rocks and other natural materials by dating techniques. They can date rocks by gauging the amount of decay of radioactive elements. The time necessary for half of any given amount of one element (the “parent...
Grade Level   5 6 7 8 9
Classroom Activities Curricula and Instruction
Save to List
2
Published in 2018
What fossils — evidence of past plant or animal life — can be found in your region, state, city, or neighborhood? You can find out by visiting the websites of organizations like the National Park Service, your state geological survey, and the Paleobiology Database. As a class, discuss how the...
Grade Level   5 6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List