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
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.
Curated OER
Matter
Eighth graders explore chemical reactions and their products. They define a chemical reaction and describe the characteristics of a chemical reaction. Students classify chemical reactions.
Curated OER
Stoichiometry
For this stoichiometry worksheet, students balance equations and name the reactants and products. This worksheet has 2 problems to solve.
Curated OER
Space Mobile Puzzle
In this mobile instructional activity, students determine the mass of the missing pieces of a mobile by using the mass of the other pieces and the length of the crossbars. This instructional activity has 3 problems to solve.
Curated OER
Ammonium Nitrate - Efficient Fertilizers
Students study the chemistry of ammonium nitrate and consider the advantages and disadvantages of this compound. They compare different fertilizers and calculate the molar mass and percent nitrogen in the different fertilizers.
Curated OER
Electrolysis Reactions
In this electrolysis reactions worksheet, students determine the mass of a compound and the time required for specific electrolysis reactions. This worksheet has 5 problems to solve.
Curated OER
Chemistry 1A Review
In this Chemistry 1A worksheet, students review, molecular weight, solubility, endothermic reactions, and number of protons, neutrons, and electrons for elements. Students review Lewis Structures and how to predict the amount of product...
Curated OER
Stoichiometry Practice Problems
In this stoichiometry worksheet, learners calculate the mass of product created from given chemical reaction equations. This worksheet has 4 problems to solve.
Curated OER
Einstein's BIg Idea
Students discuss what the m in E=mc2 represent. They relate that mass in a chemical reaction is always conserved. Students convey that atoms rearrange themselves in chemical reactions to form different molecules and compounds.
Curated OER
Theoretical Yield and Percent Yield in Chemical Reaction
In this stoichiometry worksheet, students solve several problems using the stoichiometric method. Students find the percent, theoretical, and actual yield for all problems presented.
Curated OER
Half-life Worksheet
In this half-life worksheet, students determine how long it takes for a 100g sample of AU-198 to decay to 6.25g. Then they determine the half-life of a radioactive isotope if a 500.0g sample decays to 62.5g in 24.3 hours. Students also...
Curated OER
More Thermochemistry Problems
This two-page assignment covers basic thermochemistry concepts. Chemistry learners identify exothermic and endothermic processes, explain a phase change graph, and draw an energy level diagram. There are no problems to solve, just...
Curated OER
Scientific Notation myTestBook.com
In this scientific notation worksheet, students solve equations containing numbers in standard notation and scientific notation. They add, subtract, multiply, and divide problems with scientific notation. This one-page worksheet...
Curated OER
Partial Products
Third graders study partial-products algorithms. In this math lesson, 3rd graders use an algorithm to find the product of factors. Students discuss the relationships between multiplication and division.
Curated OER
Moles
In this moles activity, students calculate the number of moles found in a specific chemical compound mass. Students also calculate how many moles in produced in specific reactions. This activity has 4 problems to solve.
College Board
2012 AP® Macroeconomics Free-Response Questions
A fictional country is facing tough economic times and has a few options to tinker with the economy. Which is the best path forward? Scholars consider the best way to reverse a recession using materials from College Board. Other queries...
Council for Economic Education
Business in the Middle Ages: Working in a Guild
Long before modern labor unions, guilds worked to ensure that workers had a fair wage. But, in medieval Europe, they also cooperated with the government. Using a simulation and primary source analysis, young scholars become hatters in...
Curated OER
The Preparation of Teraamminecopper(II) Sulphate-1-water
In this complex salt learning exercise, students create teraamminecopper(II)sulphate-1-water using copper(II)sulphate, concentrated ammonia and ethanol. Students determine the formula mass for their product, the theoretical yield of the...
Curated OER
Physics and Me
Sixth graders compare and contrast mass and weight. For this physics lesson, 6th graders calculate speed given distance and time information. They construct a rocket and relate this to Newton's 3rd Law of motion.
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