Royal Society of Chemistry
A Solid-Solid Reaction between Lead Nitrate and Potassium Iodide
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...
LABScI
Conservation of Momentum: Marble Collisions
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...
Kenan Fellows
Balancing Equations Using Matrices
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...
Curated OER
2001 U.S. National Chemistry Olympiad - Local Section Exam
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...
Curated OER
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 general...
Curated OER
Center of Mass
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.
Curated OER
Mass To Mass Problems
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.
Curated OER
Chemical Equations
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...
Curated OER
Student Handout 6A :Trail of the Tomato Group A: Fast Food Chains /Grocery Stores
There is a lot to be learned from a tomato. Kids research the pressures that four major fast food and supermarket chains endure to keep customers coming back. They analyze how this pressure is then transferred to those working in the...
College Board
2008 AP® Macroeconomics Free-Response Questions Form B
What happens if Mexico decreases tariffs on imported cars? Learners consider the question and others using authentic College Board materials. Other questions include evaluating the effects of government spending on a fictional country...
Pingry School
Mole Relationship in a Chemical Reaction
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...
Purdue University
Designing a Device Utilizing a Balloon Filled with Carbon Dioxide
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,...
College Board
2003 AP® Macroeconomics Free-Response Questions Form B
Learners consider production possibilities using an authentic test question from College Board. Other questions include practicing supply and demand curves and examining the effects of inflation, employment, and other variables on a...
College Board
2003 AP® Macroeconomics Free-Response Questions
A country experiences inflation. What options does the government have to control the problem? Using authentic materials from College Board, learners consider the problem. Additional questions explore supply and demand curves, as well as...
College Board
2008 AP® Macroeconomics Free-Response Questions
How could consumer confidence affect an economy otherwise operating smoothly? A prompt from College Board examines the topic. Other questions include exploring the production possibilities of two fictional nations and evaluating a...
College Board
2004 AP® Microeconomics Free-Response Questions
All goods have a social cost. A set of questions considers how to best calculate the impact the production of goods has on society. Other practice problems from College Board consider supply-and-demand curves and the impact of licensing...
Curated OER
Solids, Liquids, and Gases
Not many lessons on states of matter can hold a candle to this one! Junior chemists gauge the density of paraffin in both liquid and solid phases. They fill 60 mL syringes with different materials to experiment with compressibility and...
Learning Games Lab
Nitrogen in Fertilizer
Nitrogen is an essential element for productive farming. An interactive lesson explores the chemical makeup of different fertilizers and their corresponding nitrogen content. The interactive challenges individuals to complete molecular...
Columbus City Schools
ABC: Acid Base Chemistry
Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun resource. Engage them...
Science Geek
Balancing Chemical Equations
Balancing equations means conserving mass; use the presentation to help learners practice this concept. The resource includes 56 equations for your class to practice balancing. Scholars focus on one reaction type at a time. Groups of...
American Chemical Society
Engineering a Floatation Device
Classes will definitely not be sinking after a buoyant lesson! A project-based assessment helps highlight the importance of prior knowledge as individuals design a floatation device for a cell phone. They use their knowledge of chemical...
Curated OER
The Automobile
Students are introduced to technological innovations that contributed to mass production of the automobile and how this allows large numbers of Americans to afford an automobile.
Curated OER
The "Laws" and Principles of Chemical Reactions
In this chemical reactions worksheet, students review the law of conservation of mass, the principle of definite proportions, and balancing equations. This worksheet has 3 problems to solve.
Curated OER
Limiting Reactant
In this chemistry worksheets, students calculate the amount of reactants and products are produced by the given equations. Students also calculate the number of moles as well as the mass of the given compounds.