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Read the Fine Print

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(Complete Item Description)
- Abstract:
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:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- Collection:
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TeachEngineering
Read the Fine Print

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(Complete Item Description)
- Abstract:
How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations
Read the Fine Print

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Read the Fine Print

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(Complete Item Description)
- Abstract:
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:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- SubTopics:
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Pollution
- Collection:
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TeachEngineering
Remix and Share

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(Complete Item Description)
- Abstract:
Current research topics in computational complexity theory. Nondeterministic, alternating, probabilistic, and parallel computation models. Boolean circuits. Complexity classes and complete sets. The polynomial-time hierarchy. Interactive proof systems. Relativization. Definitions of randomness. Pseudo-randomness and derandomizations. Interactive proof systems and probabilistically checkable proofs. The topics for this course cover various aspects of complexity theory, such as the basic time and space classes, the polynomial-time hierarchy and the randomized classes. This is a pure theory class, so no applications were involved.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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MIT OpenCourseWare
Read the Fine Print

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(Complete Item Description)
- Abstract:
This is a comprehensive textbook covering life functions that are ultimately interpretable in chemical terms, as chemistry is the logic of biological phenomena.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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University of Virginia
Read the Fine Print

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(Complete Item Description)
- Abstract:
In this activity, 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:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
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TeachEngineering
Read the Fine Print

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(Complete Item Description)
- Abstract:
As part of their general education studies, all students at the University of Kentucky must take two natural science courses. Many non-science majors choose the biology sequence of courses. Unfortunately these courses are lecture-only courses, and so some students can graduate without ever having had a science laboratory course. In an effort to provide students with some laboratory experience, I have developed / adapted a number of laboratory activities, which I have successfully incorporated into a non-majors biology course (Human Ecology). These activities are carried out in a lecture hall with 300 students in 50-minute time periods. In this chapter, two of these laboratory activities are presented. 1) Soil Testing - students test soil samples for nitrogen, potassium, phosphate and pH; compare the relative fertility of different soil samples; and carry out an inventory of animal and microbial life in soil samples. 2) Water Pollution Testing - students examine the effects of household chemicals on water quality (from Using Fast Plants and Bottle Biology in the Classroom, published by National Association of Biology Teachers, 1994, ISBN #0-941212-17-3).
- Subject:
- Science and Technology
- Grade Level:
- Secondary, Post-secondary
- SubTopics:
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Soil and Land
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Water
- Collection:
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Association for Biology Laboratory Education (ABLE)
Read the Fine Print

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(Complete Item Description)
- Abstract:
Student teams locate a contaminant spill in a hypothetical site by measuring the pH of soil samples. Then they predict the direction of groundwater flow using mathematical modeling. They also use the engineering design process to come up with alternative treatments for the contaminated water.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- SubTopics:
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Soil and Land
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Water
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Pollution
- Collection:
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TeachEngineering
Remix and Share

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(Complete Item Description)
- Abstract:
This sophomore-level course is a project-oriented introduction to the principles and practice of engineering design. Design projects and exercises are chosen that relate to the built and natural environments. Emphasis is placed on achieving function and sustainability through choice of materials and processes, compatibility with natural cycles, and the use of active or adaptive systems. The course also encourages development of hands-on skills, teamwork, and communication; exercises and projects engage students in the building, implementation, and testing of their designs.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- SubTopics:
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Green Building and Design
- Collection:
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MIT OpenCourseWare
Remix and Share

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(Complete Item Description)
- Abstract:
Laboratory Chemistry (5.310) introduces experimental chemistry for students requiring a chemistry laboratory who are not majoring in chemistry. Students must have completed general chemistry (5.111) and have completed or be concurrently enrolled in the first semester of organic chemistry (5.12). The course covers principles and applications of chemical laboratory techniques, including preparation and analysis of chemical materials, measurement of pH, gas and liquid chromatography, visible-ultraviolet spectrophotometry, infrared spectroscopy, kinetics, data analysis, and elementary synthesis.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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MIT OpenCourseWare
Read the Fine Print

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(Complete Item Description)
- Abstract:
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:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary
- SubTopics:
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Pollution
- Collection:
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TeachEngineering
Read the Fine Print

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Remix and Share

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(Complete Item Description)
- Abstract:
Have you ever wondered how scientists analyze the environment? This unit introduces you to the techniques used by science students at residential schools. You will learn how to determine where rocks have come from and how they were made. You will also examine the processes involved in determining the ecology of a particular area.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- SubTopics:
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Pollution
- Collection:
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Open University OpenLearn
Read the Fine Print

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(Complete Item Description)
- Abstract:
This tutorial includes: definitions of pH and Buffers, how Buffers work, problems of predicting the pH of a Buffer, problems of predicting Buffer capacity.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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The ChemCollective
Read the Fine Print

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(Complete Item Description)
- Abstract:
The purpose of this resource is to measure the pH of a soil horizon. Students mix dried and sieved soil samples with distilled water. The mixture is allowed to settle until a relatively clear layer is formed. Students use a pH pen, pH meter, or pH paper to determine the pH of the sample. The procedure is done three times for each horizon.
- Subject:
- Science and Technology
- Grade Level:
- Secondary
- Collection:
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Globe Program
Read the Fine Print

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(Complete Item Description)
- Abstract:
The purpose of this resource is to teach students about the acidity levels of liquids and other substances around their school so they understand what pH levels tell us about the environment. Students will create mixtures of water samples, soil samples, plants and other natural materials to better understand the importance of pH levels.
- Subject:
- Science and Technology
- Grade Level:
- Secondary
- Collection:
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Globe Program
Read the Fine Print

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(Complete Item Description)
- Abstract:
Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations