Curated OER
WS 4.4 Stoichiometry
In this stoichiometry worksheet, students are given four chemical reactions and they find quantities of products made, limiting reactants, excess reactants, and percent yield of products.
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WS 4.8-Review
In this chemistry review worksheet, students solve a variety of problems including balancing equations, solving for unknowns using dimensional analysis, finding percent yields, limiting reactants and empirical formulas.
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Care Homework #7
For this care homework worksheet, learners add, subtract, multiply and divide integers. They multiply and divide fractions. Students complete percent problems and determine the area of polygons. This three-page...
Creative Chemistry
The Preparation of Teraamminecopper(II) Sulphate-1-Water
For this complex salt worksheet, learners create teraamminecopper(II) sulfate · 1 · 2H₂O using copper(II) sulfate, concentrated ammonia, and ethanol. High schoolers determine the formula mass for their product, the theoretical yield of...
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Taxes, Tips, and Salaries
In this taxes, tips and salaries worksheet, students read story problems and determine the sales price, percent of change, amount of tax, and final price. This four-page worksheet contains 8 multi-step prolems. Answers are...
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Exponential Population Growth
In this exponential population growth instructional activity, students read word problems and determine the exponential growth of a specified populations. They find the percent of growth and compute exponential regressions. ...
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Percents, Decimals, Fractions
For this identifying equal amounts worksheet, students fill in the empty columns with the correct percent, decimal, or fraction reduced to lowest terms. Students solve 18 problems.
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Fractions to Percents
In this fractions to percents worksheet, students convert fractions with numbers less than 40 into percents. Students complete 6 problems total.
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Fractions to Percents
In this percent worksheet, students problem solve and calculate how to change ten fractions into percents. Students share their answers with their classmates.
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Froot Loops to the Max - 3
Learners complete and solve five questions/problems related to a box of Froot Loops cereal. First, they determine how many of each color of Froot Loops are in the box. Then, pupils determine which color had the greatest frequency and...
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Froot Loops to the Max - 4
In this Froot Loops to the Max worksheet, 5th graders solve and complete 4 different problem related to counting a box of Froot Loops cereal. First, they determine how many of each color listed there is in the box. Then, students...
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Condensation Polymerization: Preparation of Thiokoll® (Polysulfide Rubber)
This lab activity is geared toward experienced chemistry learners, in particular, those who are familiar with organic chemistry. They will create a synthetic elastomer and then make observations and measurements of its different...
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2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
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2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your...
Curated OER
The Mathematics of Chemical Formulas
Wow! This is one of the most exhaustive presentations on finding chemical formulas that you will come across! Beginning with the basics, and leaving junior chemists with procedures and concrete examples, this PowerPoint certainly...
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Go Figure! Using Percents in the Real World
Sixth graders solve sales tax problems. In this solving sales tax problems lesson plan, 6th graders find the sales tax on various items. Students are given a list of expenses that a family spent on vacation before...
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Finding Percent When Given A Fraction
Seventh graders calculate percentages when given a fraction. They convert a percentage to a fraction. All of this be done by each student's ability to read the graphs made available by the spreadsheet information.
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Grade 5 Math: Fractions, Decimals, Percents 5
In this grade 5 math activity, 5th graders determine percentages in 8 problems. They answer the question, "What is ____% of _____?"
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Ratios, Proportions, and Percents
Eighth graders use ratios and proportions to solve real-life problems. In this using ratios and proportions to solve real-life problems lesson, 8th graders estimate the cost of a road trip. Students estimate the distance...
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Concept: Percent ... A Special Fraction
In this percent worksheet, students review and study what percent means, what percent strips are, making sense of percents and estimating percents. Students complete ten word problems.
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An Introduction to Percent
Fifth graders explore the concept of percents. In this percent lesson, 5th graders express fractions and decimals as percents. Students convert fractions and decimals as percents in this lecture style lesson.
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Converting fraactions and percents
Sixth graders practice the conversion of percents and fractions. They focus on the fact of both fractions and percents are part of a whole. In the independent practice the students also work with solving proportions.
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Finding Percents of a Number
In this percents worksheet, students find the values of each percent and number. Kids solve forty percent value problems. Students write their answers in the provided space.
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