ALEX Classroom Resource

  

How Sedimentary Rocks are Formed

  Classroom Resource Information  

Title:

How Sedimentary Rocks are Formed

URL:

http://sciencenetlinks.com/lessons/how-sedimentary-rocks-are-formed/

Content Source:

Science NetLinks
Type: Lesson/Unit Plan

Overview:

In this lesson, students investigate the stripes in sedimentary rocks using a structure at Petra, in Jordan, as an example and then do a hands-on activity using mixed nuts to illustrate the layering of sedimentary rocks. Throughout the lesson, students are asked to reflect on the central question: How are the stripes of sedimentary rocks formed?

Content Standard(s):
Science
SC2015 (2015)
Grade: 4
12 ) Construct explanations by citing evidence found in patterns of rock formations and fossils in rock layers that Earth changes over time through both slow and rapid processes (e.g., rock layers containing shell fossils appearing above rock layers containing plant fossils and no shells indicating a change from land to water over time, 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).


NAEP Framework
NAEP Statement::
E4.3: The surface of Earth changes. Some changes are due to slow processes such as erosion and weathering, and some changes are due to rapid processes such as landslides, volcanic eruptions, and earthquakes.

NAEP Statement::
E4.4: Earth materials that occur in nature include rocks, minerals, soils, water, and the gases of the atmosphere.

NAEP Statement::
E8.4: Earth processes seen today, such as erosion and mountain building, make it possible to measure geologic time through methods such as observing rock sequences and using fossils to correlate the sequences at various locations.

NAEP Statement::
E8.6: Soil consists of weathered rocks and decomposed organic material from dead plants, animals, and bacteria. Soils are often found in layers with each having a different chemical composition and texture.


Unpacked Content
Scientific And Engineering Practices:
Constructing Explanations and Designing Solutions
Crosscutting Concepts: Patterns
Disciplinary Core Idea: Earth's Systems
Evidence Of Student Attainment:
Students:
  • Construct explanations by citing evidence found in patterns of rock formations that Earth changes over time through both slow and rapid processes.
  • Construct explanations by citing evidence of fossils in rock layers that Earth changes over time through both slow and rapid processes.
  • Cite evidence from patterns in fossils in rock layers to support an explanation for changes in a landscape over time.
Teacher Vocabulary:
  • Evidence
  • Patterns
  • Rock Formations
  • Fossils
  • Rock Layers
  • Landscape
  • Marine fossils
Knowledge:
Students know:
  • Different rock layers found in areas can show either marine fossils or land fossils.
  • Ordering of rock layers (e.g. layer with marine fossils found below layer with land fossils).
  • Presence of particular fossils (e.g., shells, land plants) in specific rock layers as evidence of Earth's changes over time.
  • The occurrence of events (e.g., earthquakes) due to Earth forces.
Skills:
Students are able to:
  • Observe evidence from rock patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Identify evidence from rock patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Articulate and describe from evidence patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Use reasoning to connect the evidence to support the explanation including the identification of a specific pattern of rock layers and fossils.
Understanding:
Students understand that:
  • 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.
AMSTI Resources:
AMSTI Module:
Water and Landforms

Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.4.12- Identify patterns in rock formations and rock layers; explain how Earth changes over time.


Tags: layers, rocks, sedimentary
License Type: Custom Permission Type
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  This resource provided by:  
Author: Stephanie Carver