Edible Geology -directions
- Formed when land was under water
- Formed by sand deposited by a river
- Fossils are often found here
- Formed when area was part of a large swamp
- Very important to fossil hunters
- Where you find coal, you are likely to find fossils nearby
- Dark coal beds are easy to spot
Sandstone - 2
- Made of grains that are smaller than sand, but larger than clay
- Which layer is the “oldest”?
- Rock layers can stretch, bend, and even break
- Pressures inside the earth form mountain ranges
- Slide a knife under the center of your gelatin square and lift.
- Rock layers (strata) can get mixed up another way
- Gently push in from opposite sides of the square so the center rises up.
- Earth’s surface has big cracks called faults
- Sometimes land around a fault line is raised above another
- Rocks are constantly being worn away by wind and rain, uncovering fossils