Rock Layers & Relative Dating

Understand that rock layers (strata) form in sequence with the oldest at the bottom and the youngest at the top, and that fossils found in deeper layers are older — this is the principle of relative dating

Usually learned at ages 9–11

Builds on: How Fossils Form, Types of Rock (helps), Properties of materials (helps), The Mesozoic Era (helps)

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On the map from: Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy