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Worksheet
Curated OER

Limiting Reagent Practice Problems

For Students 10th - Higher Ed
In this limiting reagents worksheet, students solve 10 problems. They calculate limiting reagents, they calculate percent yield of particular compounds and they determine how much of products can be produced based on the limiting reagents.
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Worksheet
Curated OER

What is a Chemical Reaction?-Evidence of Change

For Students 10th - 12th
In this chemical reactions learning exercise, students experiment with hydrochloric acid and copper (I) chloride to identify the types of reactions they undergo with various other substances. They also observe the law of conservation of...
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Worksheet
Curated OER

Everything about Equations

For Students 9th - 12th
In this chemical reactions worksheet, students are given fifteen unbalanced equations and they must identify the reaction types, the phases of the products, the signs that a chemical change occurred and the sum of the coefficients of the...
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Lesson Plan
Curated OER

Pendulums on the Moon

For Teachers 6th - 8th
Young scholars conduct experiments to determine if length, mass, or starting angle has any effect on the rate of a pendulum's swing. They also conduct an experiment online to determine if gravitational force plays a role in the swing. ...
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Lesson Plan
Curated OER

Polymers Lab: Bouncy Ball and Slime

For Teachers 8th
Eighth graders investigate chemical reactions to produce polymers. In this polymers lesson plan, 8th graders experiment with sodium silicate and ethyl alcohol to make a polymer. They also experiment with borax and glue to make a polymer....
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Worksheet
Curated OER

Article - "Designer Catalysts"

For Students 10th - 12th
In this catalyst worksheet, students define catalyst and enzyme and explain how these work in a chemical reaction. Students calculate molar mass of a compound. This worksheet has 7 short answer questions and 2 problems to solve.
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Lesson Plan
Cornell University

Predicting Chemical Reactions

For Teachers 9th - 12th
Prove the Law of Conservation of Mass through a lab investigation. A well-designed instructional activity asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products...
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PPT
Science Geek

Stoichiometry

For Students 10th - Higher Ed
Watch your class react when you tell them they're going to study stoichiometry! The lesson demonstrates four examples. Scholars must write and balance the chemical equation and then make the conversion to find the correct mass or volume....
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Lesson Plan
Santa Monica College

The Composition of Potassium Chlorate

For Teachers 9th - Higher Ed Standards
The third lesson in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is from a...
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Lesson Plan
2
2
American Chemical Society

What is a Chemical Reaction?

For Students 6th - 8th Standards
When a candle burns down, what happens to the mass that appears to be shrinking? Lesson begins with a demonstration of the chemical reaction of a candle burning. Then scholars use atom models to observe conservation of mass concretely. 
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Lesson Plan
Virginia Department of Education

The Law of Conservation of Matter

For Teachers 9th - 12th
The Law of Conservation of Matter can be complex for young scientists to fully grasp. Use this experiment to help simplify the process as pupils perform two experiments to determine mass: one that melts a substance and the other that...
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Lesson Plan
LABScI

Conservation of Momentum: Marble Collisions

For Teachers 9th - 12th Standards
What happens to the momentum of an object when it strikes another object? Scholars roll a marble down a ramp so it collides with another marble. By measuring the speed of each marble before and after the collision, pupils answer this...
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Lesson Plan
Kenan Fellows

Balancing Equations Using Matrices

For Teachers 9th - 12th Standards
Matrices help solve systems of equations in chemistry, computer graphics, circuitry, probability, and more. The second lesson in a seven-part series focuses on using matrices to balance chemical equations. Pupils rely on the Law of...
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Worksheet
Curated OER

The Columbia Exchange

For Students 5th - 7th
The Columbia Exchange was one of the first major instances of mass international trade. Learners cut out 24 images of trade commodities and glue them on a map of the world. It'll be fun for kids to see where so many products they use...
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Lab Resource
Royal Society of Chemistry

A Solid-Solid Reaction between Lead Nitrate and Potassium Iodide

For Teachers 6th - 11th Standards
Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...
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Assessment
Curated OER

2001 U.S. National Chemistry Olympiad - Local Section Exam

For Students 9th - 12th
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
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Assessment
Curated OER

2000 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
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 general...
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Lesson Plan
Curated OER

Center of Mass

For Teachers 8th - 10th
Students identify the geometric mean of their data. In this statistics lesson plan, students collect data and graph their findings. They identify the mean, range and mode.
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Lesson Plan
Curated OER

Mass Production

For Teachers 6th
Sixth graders work together as a class to become a company that has the job of researching, designing, manufacturing, and marketing a useful product. Student transfer plans of final design into a CAD drawing and mass produce the...
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Worksheet
Curated OER

Mass To Mass Problems

For Students 9th - 12th
In this chemistry instructional activity, high schoolers engage in a series of chemical problems that are associated with comparing mass to mass. The answers are included.
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Lesson Plan
Global Oneness Project

Deconstructing Consumerism

For Students 9th - 12th Standards
To increase awareness and launch a discussion of consumerism, class members view What Would It Look Like, a 25 minute film of images that capture the global effects of the consumption of goods. Viewers make a list of the images that they...
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PPT
Curated OER

Chemical Equations

For Teachers 9th - 12th
Wow! This comprehensive collection of slides will walk your chemistry class through the foundation of chemical reactions, teach them to balance equations, differentiate types of reactions, and calculate stoichiometry problems. This will...
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Lab Resource
Pingry School

Mole Relationship in a Chemical Reaction

For Students 9th - 12th
What do budding scientists know about moles and reactions? Using an attention-grabbing lab experiment, young scholars collect data to apply the law of conservation of mass to predict the mass of gaseous products. They examine several...
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Lesson Plan
1
1
Purdue University

Designing a Device Utilizing a Balloon Filled with Carbon Dioxide

For Teachers 5th
Don't waste all that carbon dioxide. Scholars first produce carbon dioxide by mixing baking soda and vinegar. They measure the masses of the reactants and products to verify the law of conservation of mass. As a culminating activity,...

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