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Acid Attack
Read the Fine Print
Educational Use
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In this activity, students explore the effect of chemical erosion on statues and monuments. They use chalk to see what happens when limestone is placed in liquids with different pH values. They also learn several things that engineers are doing to reduce the effects of acid rain.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Jessica Todd
Malinda Schaefer Zarske
Melissa Straten
Date Added:
10/14/2015
Acid (and Base) Rainbows
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Educational Use
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Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.

Subject:
Applied Science
Engineering
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Amy Kolenbrander
Denise Carlson
Gwendolyn Frank
Janet Yowell
Malinda Schaefer Zarske
Natalie Mach
Sharon Perez
Date Added:
09/26/2008
Basically Acidic Ink
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Educational Use
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Students hypothesize whether vinegar and ammonia-based glass cleaner are acids or bases. They create designs on index cards using these substances as invisible inks. After the index cards have dried, they apply red cabbage juice as an indicator to reveal the designs.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Christine Hawthorne
Corey Burton
Nicole Stewart
Rachel Howser
Date Added:
09/18/2014
Basically Acids
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Educational Use
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Students learn the basics of acid/base chemistry in a fun, interactive way by studying instances of acid/base chemistry found in popular films such as Harry Potter and the Prisoner of Azkaban and National Treasure. Students learn what acids, bases and indicators are and how they can be used, including invisible ink. They also learn how engineers use acids and bases every day to better our quality of life. Students' interest is piqued by the use of popular culture in the classroom.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Christine Hawthorne
Rachel Howser
Date Added:
09/18/2014
Biology
Unrestricted Use
CC BY
Rating
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Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

Subject:
Biology
Life Science
Material Type:
Full Course
Date Added:
07/18/2021
Biology, The Chemistry of Life, The Chemical Foundation of Life, Water
Conditional Remix & Share Permitted
CC BY-NC
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By the end of this section, you will be able to:Describe the properties of water that are critical to maintaining lifeExplain why water is an excellent solventProvide examples of water’s cohesive and adhesive propertiesDiscuss the role of acids, bases, and buffers in homeostasis

Subject:
Applied Science
Biology
Life Science
Material Type:
Module
Author:
OpenStax College
Date Added:
07/18/2021
Breathing Cells
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Educational Use
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Students use a simple pH indicator to measure how much CO2 is produced during respiration, at rest and after exercising. They begin by comparing some common household solutions in order to determine the color change of the indicator. They review the concepts of pH and respiration and extend their knowledge to measuring the effectiveness of bioremediation in the environment.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Kaelin Cawley
Malinda Schaefer Zarske
Date Added:
10/14/2015
Common and Natural Logarithms and Solving Equations
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Educational Use
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Students continue an examination of logarithms in the Research and Revise stage by studying two types of logarithms—common logarithms and natural logarithm. In this study, they take notes about the two special types of logarithms, why they are useful, and how to convert to these forms by using the change of base formula. Then students see how these types of logarithms can be applied to solve exponential equations. They compute a set of practice problems and apply the skills learned in class.

Subject:
Applied Science
Engineering
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Kristyn Shaffer
Date Added:
09/18/2014
Designing a Color-Changing Paint Using pH
Read the Fine Print
Educational Use
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How can an understanding of pH—a logarithmic scale used to identify the acidity or basicity of a water-based solution—be used to design and create a color-changing paint? This activity provides students the opportunity to extract dyes from natural products and test dyes for acids or bases as teams develop a prototype “paint” that is eventually applied to help with a wall redesign at a local children’s hospital. Students learn about how dyes are extracted from organic material and use the engineering design process to test dyes using a variety of indicators to achieve the right color for their prototype. Students iterate on their dyes and use ratios and proportions to calculate the amount of dye needed to successfully complete their painting project.

Subject:
Applied Science
Chemistry
Engineering
Mathematics
Numbers and Operations
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
Activities
Author:
Benjamin McCombs
Carly Monfort
Joseph Duncan
Linda Gillum
Miyong Hughes
Date Added:
01/30/2019
Digestion Simulation
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Educational Use
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To reinforce students' understanding of the human digestion process, the functions of several stomach and small intestine fluids are analyzed, and the concept of simulation is introduced through a short, introductory demonstration of how these fluids work. Students learn what simulation means and how it relates to the engineering process, particularly in biomedical engineering. The teacher demo requires vinegar, baking soda, water and aspirin.

Subject:
Anatomy/Physiology
Applied Science
Engineering
Life Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Denise W. Carlson
Jacob Crosby
Malinda Schaefer Zarske
Date Added:
09/18/2014
Go with the Flow
Read the Fine Print
Educational Use
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Students gain an understanding of the difference between electrical conductors and insulators, and experience recognizing a conductor by its material properties. In a hands-on activity, students build a conductivity tester to determine whether different objects are conductors or insulators. In another activity, students use their understanding of electrical properties to choose appropriate materials to design and build their own basic circuit switch.

Subject:
Applied Science
Engineering
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Daria Kotys Schwartz
Denise Carlson
Joe Friedrichsen
Malinda Schaefer Zarske
Sabre Duren
Xochitl Zamora Thompson
Date Added:
09/18/2014
Not So Neutral Views
Read the Fine Print
Educational Use
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Students are introduced to acids and bases, and the environmental problem of acid rain. They explore ways to use indicators to distinguish between acids and bases. Students also conduct a simple experiment to model and discuss the harmful effects of acid rain on our living and non-living environment, as well as how engineers address acid rain. In an associated literacy activity, students learn how persuasive techniques are used to develop an argument, and create an environmental case study.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Case Study
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Amy Kolenbrander
Denise Carlson
Janet Yowell
Malinda Schaefer Zarske
Natalie Mach
Date Added:
09/18/2014
Red Cabbage Chemistry
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Educational Use
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Students take advantage of the natural ability of red cabbage juice to perform as a pH indicator to test the pH of seven common household liquids. Then they evaluate the accuracy of the red cabbage indicator, by testing the pH of the liquids using an engineer-designed tool, pH indicator strips. Like environmental engineers working on water remediation or water treatment projects, understanding the chemical properties (including pH) of contaminants is important for safeguarding the health of environmental water sources and systems.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Barry Williams
Jessica Ray
Phyllis Balcerzak
Date Added:
09/18/2014
Soap vs. Shampoo Surfactant Lab
Read the Fine Print
Educational Use
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Students learn about the properties of solutions—such as ion interactions, surface tension and viscosity—as they make their own soap and shampoo and then compare their properties. Working as if they are chemical engineers, they explore and compare how the two surfactants behave in tap water, as well as classroom-prepared acidic water, hard water and seawater using four tests: a “shake test” (assessing the amount of bubbles produced), a surface tension test, a viscosity test, and a pH test. Then they coalesce their findings into a recommendation for how to engineer the best soap versus shampoo. The activity may be shortened by using purchased liquid soap and shampoo from which students proceed to conduct the four tests. A lab worksheet and post-quiz are provided.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Author:
Dahlia Amato
Date Added:
07/07/2021
VETTED - Bioscience Curriculum Year 1, Ph, Bioscience Acid Base Reaction Species Lesson 6 Unit 8 Y1
Conditional Remix & Share Permitted
CC BY-NC-SA
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 In this lesson, students will write the generic format for an acid base reaction and then identify the salt on the product side of an acid base reaction.  Students will write the definition of a conjugate acid or base and pick out the conjugate base and conjugate acid from and acid base reaction before matching the acid/base and conjugated base/ acid pair when given an acid base reaction.

Material Type:
Lesson
Author:
OER Librarian
Date Added:
09/29/2021
VETTED - Bioscience Curriculum Year 1, Ph, Bioscience pH of Solutions Lesson 3 Unit 8 Y1
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this lesson, students will write a brief explanation of what a pH indicator does when introduced to various solutions and use red or blue litmus paper and pH paper to determine if a solution is acidic or basic.

Material Type:
Lesson
Author:
OER Librarian
Date Added:
09/29/2021