Physical Weathering | Frost Wedging, Abrasion & Earth Science Notes

The Description

Why do rocks crack, round off, or split apart without changing their mineral makeup? These physical-weathering notes help students connect the familiar examples—frost action, abrasion, and temperature changes—to the processes happening within the rock.

The resource ties the mechanics of weathering back to the wider puzzle of disappearing mountain landscapes, providing an accessible bridge into erosion and geologic change.

What Students Will Do

• Read illustrated explanations of physical weathering at the rock and particle scale.

• Compare frost wedging, abrasion, and thermal expansion.

• Discuss evidence and similarities among processes.

• Use guided prompts to connect weathering to landscape change.

Why This Resource Is Different

Here's the understanding gap these notes address: students can match frost wedging to an ice picture, but can they explain why freezing water pushes a rock apart? The text slows down the cause-and-effect mechanism and asks students to compare what actually happens in frost action, abrasion, root growth, and heating and cooling.

The stop-and-talk prompts push students beyond naming the process. They connect their explanations back to the larger mystery of how mountains change shape over time, making this a useful companion to the separate Where Did the Mountains Go? investigation.

What's Included?

• Eight-page Physical Weathering student notes and activities PDF, including repeated / example pages.

• Original terms-of-use document.

The Details

Audience: Middle and high school Earth Science. Focus: Physical weathering, frost action, abrasion, temperature expansion. Format: PDF.