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Assignment OverviewUnit 4 – Individual Project ASSIGNMENT DESCRIPTION Deliverable Length: 2 pages OBJECTIVES Welcome back –this week you will complete your second lab activity! You will conduct simulated field research on various surfaces after rainfall to determine water infiltration and runoff.   Start with your Unit 4 Learning Path in Intellipath (located in the Assignments List). Here you will learn the concepts you’ll need to complete this week’s key assignment, the Unit 4 Individual project:   Water Cycle Soil quality Effect of Runoff Continue on to the Unit 4 Individual Project (instructions below).  Click on the video below for a helpful overview of this week’s lab Download the lab report sheet using the link below Access the Unit 4 MUSE materials to begin the activity Read! This week’s readings will help you continue to grow in your knowledge of these key environmental concepts: Natural environment Water Pollution Infiltration Need Help? Your instructor is waiting to answer your questions and assist you!  Reach out using email or CTU Messenger for the quickest response.  We are here to support you as you approach the end of the session. Lab 4 – Soil Infiltration and Runoff   You will be conducting field research on vegetation-covered, smooth-rock covered, paved, and bare soil surfaces after rainfall to determine infiltration and runoff results.   Enter the Lab through the Unit 4 MUSE and proceed to the SCI103 Lab. The MUSE can be accessed by clicking on Learning Materials. Use all available resources in your lab environment, as well as the provided course materials and web resources to complete your lab report.    Review this video for a detailed overview of this assignment. Then you will need to access this week’s Lab Report. There is an additional helpful video linked at the top of this worksheet. Please review it before beginning the lab.

SCI103 Unit 4 Lab Tutorial: https://youtu.be/EJpiqMZ90lc

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Name:

Date:

Instructor’s Name:

Assignment: SCI103 Unit 4 Lab Report

Title: Soil Infiltration and Runoff

Instructions: Enter the Virtual Lab and gather the information needed to complete the report. Please type your answers directly into this worksheet. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom.

Part I: Virtual Field Research

Please view instructional video (in assignment description)

Section 1: Gather the following information from field research while in the virtual lab environment. Notice that each site you visit has a distinctly different surface, which could affect runoff.

Table 1 Hint:

You know that the total percent will be 100%. Therefore, you will add what water is already accounted for and then find the difference.

Example for Vegetation: 25% (Shallow infiltration) + 25% (Deep infiltration) + 10% (runoff) = 60% of water that’s accounted for. To find the evaporation which occurred you would take the original total 100% – 60% = 40% water evaporation.

One Inch of Rainfall
Shallow water infiltrationDeep water infiltrationRunoff waterEvaporation water
Vegetation
Mountain
Bare soil

Section 2: One inch of rainfall deposits 144 cubic inches (0.623 gallons) of water per square foot of surface area. Use the following formula to calculate the amount of water after one inch of rainfall (in gallons) for each section:

(0.623) x (square feet of surface area) x (% from lab demo*) = gallons of water

*Remember 40% is written as “0.40” in an equation.

Table 2 Hint:

One inch of rainfall deposits 144 cubic inches (0.623 gallons) of water per square foot of surface area. In this lab, all research sites are 100 square feet in area.

Use the following formula to calculate the amount of water after one inch of rainfall (in gallons) for each section:

(0.623) x (square feet of surface area) x (% from lab demo*) = gallons of water

*Remember 40% is written as “0.40” in an equation because you must convert from percent to a decimal number.

Example: if 40 % of water at one of the sites ends up as runoff, how many gallons of water end up as runoff?

0.623 x (surface area) x (% from lab demo*) = gallons of water 0.623 X 100 sq. ft. X 0.40 = 24.92 gallons

One Inch of Rainfall
Shallow water infiltrationDeep water infiltrationRunoff waterEvaporation water
Vegetation
Mountain
Bare soil

Part II: For the following questions, provide your response in short-answer format (3–5 sentences each). Use this Phase’s activities and resources to assist you in answering.

· View instructional video (in assignment description)

· Review learning materials (Environmental Science and Soil- MUSE- first item)

· Review Unit 4 Intellipath materials.

· Please use grading criteria as a checklist

1. How does the vegetation surface type affect the amount of runoff? Speculate why this happens.

In Vegetation surface type, the runoff is _______________ because _________________________________________________

Data from Part I also show that _________________________________________

(Mention, discuss and compare the values)

2. How does the smooth mountain rock surface type affect the amount of runoff? Speculate why this happens.

In smooth mountain rock surface type, the amount of run off is _______________ because _________________________________________________

Data from Part I also show that _________________________________________

(Mention, discuss and compare the values)

3. How does the bare soil surface type affect the amount of runoff? Speculate why this happens.

In bare soil surface type, the amount of run off is _______________ because _________________________________________________

Data from Part I also show that _________________________________________

(Mention, discuss and compare the values)

4. How does vegetation slow and prevent sediment loss?

5. How does vegetation allow greater infiltration?

6. How does pavement or smooth rock runoff affect waterways?

7. How do heavy sediment deposits affect waterways?

8. How does sediment loss affect land and soil quality?

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