SLDistrict-y18-y19-HW52018-07-28T12:24:32+00:00

Earth Science Outside – y 2018 – 2019 – Via SLDistrict

Homework 5 – DRAFT – Expect clarifications

From Patterns , Through Curiosity, To Glimpses of Earth’s History

Goal

Pull it together: patterns, curiosity, and paths to concepts.

Add image or images here

Steps

Step 1. Discuss images of Homework 4 in Session 5.

Step 2. During Session 5 at Sugar House Park, color the north-south panorama of geologic units (see image, not yet attached).

Step 3. Associate images with the cross-section of the panorama. Images will include your images of Warm Springs as well as additional images given out in class. This begins the task of matching images with their location on the panorama.

Step 4. Discuss evidence of relative age of rock units and cross-cutting surfaces. Write a brief report that includes:

  • How do Earth scientists “know” the Wasatch Fault Zone is younger than the bedrock of your Warm Springs image?
  • How do Earth scientists “know” that the tilting of the bedrock shown in the panorama occurred long before the faulting of the Wasatch Fault?
  • How do geologists “know” that the Bonneville shoreline is younger than the bedrock it crosses?

Step 8. Give your own example of evidence of relative age. Take an image of a pattern of topography or Earth materials that shows a relationship of relative age.

SUBMIT by April 22, via email to genevieveatwood@comcast.net at least two images and an accompanying document. The images should be of a relationship relevant to your students that indicates relative age (younger than / older than). The document should state the location of the images, the pattern(s) of interest in the image, the curiosity the patterns inspired, and an insight about relative age of rock units or surfaces.

For example: Examine the images of Dry Creek Canyon, a drainage near where I live. The pattern that the drainage runs down the mountain face. It cuts the bedrock and therefore is younger than the bedrock. Because the water from eh canyon puts sediments across the materials it the valley, those sediments are younger than the sediment they are put across.

Add: how does it feel to do Earth science outside. Have you confidence to teach outside?