Teach: Strata and Rocks

Strata and Rocks

In this lesson, you will learn about “strata and rocks,” one of the especially important topics in Earth and space science. Rather than memorizing words alone, aim to explain the mechanisms and reasons in your own words.

Key Points
As a general rule, lower strata are older. Fossils and volcanic ash provide clues about the time and environment in which they formed.
Points to Remember
  • Check the reasons, not just the conclusions
  • Distinguish similar words and exceptions
  • Try applying the same way of thinking to other examples

Practice

  1. Explain the key points in two sentences.
  2. Give one common misunderstanding and explain what is different about it.
  3. Check your understanding by applying it to familiar or specific examples.

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