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Worksheet
Curated OER

Absolute Ages of Rocks

For Students 9th - 12th
In this ages of rock worksheet, students review the processes involved with determining the ages of rocks which includes the radioactive decay of carbon-14. This worksheet has 5 matching and 5 short answer questions.
Worksheet
Curated OER

Absolute Ages of Rocks

For Students 7th - 10th
In this age of rocks worksheet, students answer five matching questions about terms related to the decay of atoms. They use a strip of paper to simulate half life of atoms and determine the total amount of time it took to deplete the paper.
Lesson Plan
Curated OER

Excavating the Past

For Teachers 6th - 10th
Students discover how palaeontologists conduct a dig for fossils and how they interpret the age of the fossils. In small groups, they prepare a "dig site" consisting of bones, rocks and soil layered in a cardboard box. They switch boxes...