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Read the pages listed below, which are available online through Library Reserves.Electronic course reserves, or "e-Reserves," are articles and book chapters that are available online through the University Libraries.
The study of fossils and the exploration of what they tell scientists about past climates and environments on Earth can be an interesting study for students of all ages.
However, "relative" dating or time can be an easy concept for students to learn.
In this activity, students begin a sequencing activity with familiar items letters written on cards.
To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This rule is common sense, but it serves as a powerful reference point.
Geologists draw on it and other basic principles ( to determine the relative ages of rocks or features such as faults.