Module: Rock Patterns
DCI: ESS1.C – The History of Planet Earth – Local, regional, and
global patterns of rock formations reveal changes over time due to earth
forces, such as earthquakes. The presence and location of certain fossil types
indicate the order in which rock layers were formed.
PE: 4-ESS1-1 Identify evidence from patterns in rock formations and
fossils in rock layers to support tan explanation for changes in a landscape
over time.
[Clarification
Statement: Examples of evidence from patterns could include rock layers with
marine shell fossils above rock layers with plant fossils and no shells,
indicating a change from land to water over time; and, a canyon with different
rock layers in the walls and a river in the bottom, indicating that over time a
river cut through the rock.] [Assessment Boundary: Assessment does not include
specific knowledge of the mechanism of rock formation or memorization of
specific rock formations and layers. Assessment is limited to relative time.]
The ideas in this standard are:
- rock formations change over time due to earth forces, such as earthquakes.
- the presence and location of fossil types indicates the order in which rock layers were formed
The PE suggests that we provide diagrams of rock layers including rock formations or fossils, which can be used to describe that the landscape has changed over time.
Possible Question Starters:
"Tree fossils were discovered in a rock layer and clam fossils were discovered in the layer below. Based on this evidence, we can conclude which of the following?"
correct answer - the area where the fossils were found was once an aquatic environment
incorrect answer - the layer containing the trees is older than the layer containing the clams
"Several layers of rock are illustrated.
Based on the diagram, which of the rock layers is the oldest?"
No comments:
Post a Comment