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Worksheet
Curated OER

Limiting Reactant Exercise

For Students 10th - 11th
In this chemistry activity, students write the balanced equation for the problem at the top of the sheet. Then they determine which reactant is the limiting reactant and which one is in excess. Students also explain the procedures for...
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Unit Plan
OpenStax

Open Stax: Anatomy & Physiology: Electrolyte Balance

For Students 9th - 10th
Students will learn about the role of the six most important electrolytes in the body, and then study the disorders associated with abnormally high and low levels of these electrolytes.
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Website
Other

Water on the Web

For Students 9th - 10th
Water on the Web (WOW) is an advanced site allowing students to actively participate in data analysis from real research sites. Lesson plans on a range of topics are provided. There is also a tutorial for using Excel to graph WOW data.
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Article
University of California

Uc Davis Geo Wiki: Chemical Budgets of Oceanic Elements

For Students 9th - 10th
To the extent that the composition of the ocean remains constant, the rate at which any one element is introduced into seawater must equal the rate of its removal. A listing of the various routes of addition and removal, together with...
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Handout
Simon Fraser University

Chem1 Virtual Textbook: Chemical Budgets of Oceanic Elements

For Students 9th - 10th
As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the elements of the oceans. Topics covered include Phosphorus, Carbon, Bicarbonate, Calcite, and more.
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Handout
WebMD

Medicine Net: Electrolytes

For Students 9th - 10th
"What are electrolytes?" Find the answer to this question and read information on potassium, chloride, hyperkalemia, and kidney disease.
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Handout
Other

Principles of Biology Links

For Students 9th - 10th
This site gives an indepth look at blood buffering and pH.
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Handout
Wikimedia

Wikipedia: Carbonic Acid

For Students 9th - 10th
This Wikipedia encyclopedia article provides a brief overview of what carbonic acid is.
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Handout
US National Library of Medicine

Medline Plus: Electrolytes

For Students 9th - 10th
This website provides a brief definition of "electrolytes" and a few examples of the types of electrolytes that exist in your blood.