Curated OER
How Does Your Ecosystem Grow?
Students consider that under certain conditions in nature tend to remain the same or move toward a balance. They observe populations and determine the functions (e.g., de-composers, producers, consumers) they serve in an ecosystem. They...
Curated OER
Organic Chemistry Worksheet
In this organic molecules instructional activity, students classify organic compounds, they name organic compounds using the IUPAC naming system, they complete chemical reactions of organic compounds, and they draw structural formulas of...
Curated OER
How about a Little Give and Take?
Students design a closed system to test the relationships between plants and animals. They monitor abiotic fluctuations within this living system by using a chemical test kit. They observe how living organisms respond to fluctuations in...
Curated OER
Oxidation/Reduction Reactions
In this chemical reactions worksheet, students review the oxidation number rules and then assign oxidation numbers to atoms in given compounds. Students identify the reducing agent and the oxidizing agent in reactions. Students practice...
Curated OER
WS 10.12 Review
In this organic molecules worksheet, students draw molecules given their names, they draw line isomers for a given compound, they predict products of reactions, they write equations for hydration reactions and they write chemical equations.
Curated OER
Integrating Biology: The Elements in Your Body
In this body elements worksheet, students read about the chemical make-up of the human body and answer questions about the elements.
Curated OER
Its OK To Be a Clod
Students describe factors that affect the solubility of a chemical substance in seawater. In this sea environment instructional activity, student explain how information on the solubility of a substance can be used to measure water...
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Lab: Determining the Number of Moles and Molecules Used Up In a Burning Candle
Learners find moles and molecules used when a candle burns. In this moles and molecules lesson plan, students calculate the initial mass of a candle and the mass of a candle after it burns for 3 minutes. They calculate the mass lost when...
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Alcohols, Phenols, Ethers, Thiols Worksheet
In this chemistry worksheet, students name compounds, complete chemical reactions and name families of molecules formed in reactions of alcohols, phenols, ethers and thiols.
Curated OER
Inorganic Reactions
In this inorganic reactions worksheet, students complete 7 chemical reactions by predicting the products and balancing the equations.
Science Geek
Ionic Compound Formulas
By contrasting cations and anions, this presentation shows how to predict ionic charges by periodic groups. The slides conclude with a few guided practice problems for writing ionic compound formulas.
Virginia Department of Education
Acids and Bases
What did one titration say to the other titration? We should meet at the end point! Young chemists perform four experiments: dilute solution, neutralization, titration, and figuring pH/pOH.
Curated OER
Activity #6 How Fast Do Reactions Go?
Learners name the factors (concentration, temperature, and a catalyst) which can affect the rate of a chemical reaction. They use their knowledge of particle theory to explain their observations. Pupils comprehend that the...
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Solubility Homework Problem Set
In this chemistry worksheet, students write the balanced equation for the reaction and rearrange the potassium expression to solve for x. Then they determine how many grams of silver chromatic can dissolve in a specified amount of sodium...
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Chemical Stoichiometry Problems
In this stoichiometry learning exercise, students calculate theoretical yield and percent yield. This learning exercise has 2 problems to solve.
Curated OER
Ammonium Nitrate - Heat of Solution
Learners quantify the relationship between temperature, energy and heat
and define an endothermic reaction. They measure the energy change caused by dissolving one mole of ammonium nitrate in water.
Curated OER
Coal Moisture Analysis
Students investigate coal samples and analyze its drying loss under controlled conditions. They establish the loss in mass of a sample when heated under controlled conditions of temperature.
Curated OER
Ideal Gas Law
In this gas law activity, students review the Idea Gas Law equation and practice applying the equation to chemical reactions. Students write the balanced reaction, determine the limiting reagent, moles produced, and volume of gas...
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Penny Lab
In this percent composition worksheet, learners carry out an experiment to determine the percent of zinc in a penny. They write a balanced equation for the chemical reaction they performed with the penny and hydrochloric acid.
Curated OER
Chemistry: Atoms
In this chemistry worksheet students complete a series of multiple choice and short answer questions on elements, chemical reactions and balancing equations.
Curated OER
Enthalpy Worksheet
In this chemistry worksheet students complete chemical equations by calculating what the ending formula will be and balance equations.
Curated OER
Sea Connections: Marine Ecosystems
Students identify producers and consumers from marine ecosystems and describe the balance among them in the environments. After constructing a food chain from a marine ecosystem, they examine human activities that can upset the balance...
Curated OER
Precipitation and Neutralization Reactions
In this chemical reactions worksheet, students determine the balanced formula equation, balanced complete ionic equation, and the balanced net ionic equation for given reactions. Students calculate final concentrations for ions in given...
Curated OER
The Nutritional Content of Food
Students are given three unknown samples and must perform two chemical tests in order to determine if the samples contains protein and/or starch. Students work with corrosive or toxic reagents.