Lesson: River Flow Rate

Quick Look

Grade Level: 6 (6-8)

Time Required: 45 minutes

Lesson Dependency: None

Subject Areas: Life Science

Attention: This lesson requires the following resource:


A view of the north side of the Coon Rapids Dam along the Mississippi River.
The Coon Rapids Dam along the Mississippi River.
Copyright © Wikimedia Commons http://commons.wikimedia.org/wiki/File:Coon_Rapids_River_Dam_-_Coon_Rapids,_Minnesota.jpg


Students build on their understanding and feel for flow rates, as gained from the associated Faucet Flow Rate activity, to estimate the flow rate of a local river. The objective is to be able to relate laboratory experiment results to the environment. They use the U.S. Geological Survey website (https://waterdata.usgs.gov/nwis/rt) to determine the actual flow rate data for their river, and compare their estimates to the actual flow rate. For this activity to be successful, choose a nearby river and take a field trip or show a video so students gain a visual feel for the flow of the nearby river.
This engineering curriculum aligns to Next Generation Science Standards (NGSS).

Engineering Connection

Civil engineers design the systems that bring water from natural resources, such as rivers or lakes, to the communities where that water is needed. Civil engineers also oversee natural systems, such as river basins and watersheds, for flood control and drought mitigation. Completing this activity gives students a greater understanding for what civil engineers who design water systems do, as well as the skills they use.

Learning Objectives

After this activity, students should be able to:

  • Use experimental data to formulate hypotheses.
  • Use the Internet to find the flow rate of a specific river.
  • Analyze discrepancies between estimated and actual data.

Educational Standards

Each TeachEngineering lesson or activity is correlated to one or more K-12 science, technology, engineering or math (STEM) educational standards.

All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), a project of D2L (www.achievementstandards.org).

In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; within type by subtype, then by grade, etc.

  • Analyze and interpret data to determine similarities and differences in findings. (Grades 6 - 8) More Details

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  • Conduct an investigation to produce data to serve as the basis for evidence that meet the goals of an investigation. (Grades 6 - 8) More Details

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  • Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. (Grade 6) More Details

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  • Interpret and evaluate the accuracy of the information obtained and determine if it is useful. (Grades 6 - 8) More Details

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  • Use computers and calculators in various applications. (Grades 6 - 8) More Details

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  • Fluently add, subtract, multiply, and divide multidigit decimals using standard algorithms for each operation. (Grade 6) More Details

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Worksheets and Attachments

Visit [www.teachengineering.org/lessons/view/csm_engineering_our_water_lesson1_activity2_tg] to print or download.

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Understanding flow rate and determining the flow rate of rivers is important in engineering analysis and design so that our infrastructure provides sufficient amounts of water when and where it is needed. Now that you have first-hand experience with flow rates from water faucets, let's extend your flow rate knowledge to rivers and streams.


At activity end, compare estimates and real-world data. Collect and review worksheet answers to gauge students' comprehension of the subject matter.


© 2013 by Regents of the University of Colorado; original © 2005 Colorado School of Mines


Bobby Rinehart; Karen Johnson; Mike Mooney

Supporting Program

Civil and Environmental Engineering Department, Colorado School of Mines


This curriculum was created with support from the National Science Foundation. However, these contents do not necessarily represent the policies of the National Science Foundation, and you should not assume endorsement by the federal government.

Last modified: January 25, 2020


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