Week #6: Rocks & Landforms
- Describe how the three classes of rocks are formed
- Identify rock samples and describe their characteristics
- Interpret models that show how the movement of the Earth’s crust produces mountains, earthquakes, and volcanoes
- Identify examples of gradual and sudden changes in the Earth’s surface
- Recognize evidence of weathering and erosion
- Learners examined examples of rocks and discussed how they were formed. They then matched rock samples to their descriptions and observed properties of color, hardness, and luster.
- Learners constructed a layered formation from slices of bread, representing layers of igneous, metamorphic, and sedimentary rock forms.
- Learners manipulated their bread model to demonstrate examples of earthquakes and uplift mountains.
- Learners observed the resulting layers with a core sample and a side cut.
- Learners compared examples of mechanical and chemical weathering.
- Learners observed how moving sediment settled into layers using a jar of different sized rock particles.
- Learners used an ice cube as a model of glaciers as a means of changing the landscape.
- Learners weathered a layered mountain model and observed the changes.
Questions to Discuss
- What are three ways that rocks can be broken down?
- What is an example of a sudden change and a gradual change to rocks and landforms?
- Which particles (sand or stones) travelled further from your mountain model when moved by water?
- What forces have changed Alberta from a sea bed to plains and a mountain range? Which of those forces are still happening?
Things to Try at Home
- Construct a model of a landform using a different material (for example – felt, cake, or LEGO). How will you represent the layers?
- Create a rhyme, song, or cartoon strip to explain how sedimentary, metamorphic, and igneous rocks are formed.
- Look for examples of the changing Earth (mountains, earthquakes, volcanoes). Compare it to a map showing where the Earth’s plates meet. How would you describe the relationship between the plates and the land forms?
- Investigate how geologists locate the best places to drill for oil or mine for coal. What makes Alberta such a rich source of fossil fuels like this?
- Put together a photo collection of Alberta landforms (Horseshoe Canyon, the Rocky Mountains, the Frank Slide, Glacier Falls, etc.). Look for examples of layering and how the layers have been broken up.