Water, Water, Everywhere?

Skip Main Navigation
  • Home
  • Lesson Activities
    • Introduction
    • Access to Clean Water: What Is the Problem?
    • Global Water Issues
    • Your Challenge
    • The Engineering Design Process
    • Phase 1 - Regional Information on Water Issues
    • Water Quality: Possible Solutions
    • Sample Water Purification Systems
    • Water Quality Resources
    • Phase 2 - Consider Constraints and Explore Possibilities
    • Select an Approach and Develop a Design Proposal
    • Make a Prototype and Test Your Design
    • Refine Your Design and Create Your Final System
    • Communicate Your Results
    • Phase 3 - Build Your Presentation
    • Final Presentation
  • Student Resources
    • Table of Contents
    • Glossary
    • Engineering Portfolio
    • More to Explore
    • Rubric for Design Proposal
    • Rubric for Multimedia Presentation
  • Teacher Resources
    • Lesson Preparation
    • Lesson Overview
    • Objectives
    • Using This Site
    • Technology
    • Schedule
    • Essential Questions
    • Enduring Understandings
    • Background Information
    • Teacher Notes
    • Appendices
  • STEM Careers
  • Introduction
  • Severe Weather
  • Impacts of Severe Weather
  • Explore Severe Weather
  • Maryland Weather
  • Graphing Maryland Weather
  • Weather and Climate
  • Protecting Homes from Severe Weather
  • Protect a Home
  • Weatherproof Your Home
  • Final Project
  • Glossary

Refine Your Design and
Create Your Final System

illustration of faucet Access to safe drinking water is crucial for a healthy life.

What happened when you treated your sample of "contaminated" water? Were you able to see a difference between the untreated and treated water?

Record your conclusions and develop some ideas for revisions on page 14 in your Engineering Portfolio. Next, go back to your prototype and make necessary changes to refine the design.

If you have time, test your system again, comparing your new results to your original test results.

Teacher Note

In this activity, students will refine and retest their water purification systems. Have students turn to page 14 in their Engineering Portfolios. Work with groups as they figure out how to refine and retest their designs. Be sure to have additional materials and water available for students.

Read More

Essential Questions

  • How can the engineering design process be used to solve real-life problems?
  • What are some effective methods for purifying water?

STEM Career
Connection

Beronda Montgomery Meet microbiologist Beronda Montgomery.

Microbiologists study microorganisms, which are living things that can only be seen with a microscope.

Read More

<< Go to First page < Go to Previous page
  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Go to page 4
  • Go to page 5
  • Go to page 6
  • Go to page 7
  • Go to page 8
  • Go to page 9
  • Go to page 10
  • Go to page 11
  • Go to page 12
  • Go to page 13
  • Go to page 14
  • Go to page 15
  • Go to page 16
Go to Next page> Go to Last page>>
Site Map | Accessibility | About

This website is a production of Maryland Public Television/Thinkport in collaboration with the Maryland State Department of Education. The contents of this website were developed under a grant from the U.S. Department of Education. However, those contents do not necessarily represent the policy of the U.S. Department of Education, and you should not assume endorsement by the Federal Government.

Thinkport Maryland State Department of Education Maryland - STEM education

2013 Copyright Maryland State Department of Education

Creative Commons logo

Contact the MSDE Office of Instructional Technology for copyright questions.