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Once students begin to grasp "relative" dating, they can extend their knowledge of geologic time by exploring radiometric dating and developing a timeline of Earth's history.Unlike people, you can’t really guess the age of a rock from looking at it.

relative dating of rocks activities-75

Isotopes are important to geologists because each radioactive element decays at a constant rate, which is unique to that element.

The class was able to identify the culprits, as well as indicate how the law of superposition applied. The idea was easily modeled using the nonsense words and the fossil cards.

| Hi, The fossil cards can be found in the same file as the letter cards from Activity 1.

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.

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