Curated OER
2004 U.S. National Chemistry Olympiad Exam Part II
In this National Chemistry Olympiad test, junior chemists answer eight problem solving questions on a variety of topics. These include calculating molarity of solutions, determining rates of reactions, calculating decay and discussing...
Curated OER
Oxidation: Does Iron Burn?
Searching for a fairly easy demonstration of how oxidation triggers rust formation? The demonstration allows high school chemists to witness the rusting of metals, as large and small objects are held into a flame while triggering the...
Virginia Department of Education
Mystery Iron Ions
Young chemists perform an experiment to determine if a compound is iron (II) chloride or iron (III) chloride. Then they determine the formula, balance the equation, and answer analysis questions.
Science 4 Inquiry
Enzymes in Action
Enzymes play a role in almost every function in the human body. Scholars explore three variables related to the use of enzymes. They observe a catalase reaction, experiment with substrates, and examine reactions rates.
Curated OER
Enzymes
With the help of this pair of slides, biology learners will be able to define enzymes and explain the optimal conditions for functioning. The first slide, with simple graphics, shows how enzymes function as catalysts for chemical...
Curated OER
Enzyme Lab
Students investigate the enzyme catalase. In this enzyme lesson plan, students observe a normal catalase reaction, they observe liver tissue, potato, chicken and apple for the enzyme catalase and they study the effects of temperature and...
Curated OER
Fizzy Pop
Fifth graders compare and identify variables that affect the rate of a chemical change using Alka-Seltzer, water, ice, and hot water. They time how long each variable takes to pop the canister into the air, and record the results on a...
Curated OER
Alka Rockets! An Introduction to Kinetics
Students identify the factors that influence reaction rates. In this chemistry lesson, students design an experiment to test one factor they identified. They perform the experiment and share the results to the entire class.
Curated OER
Effect of Concentration of the Reactants
Students experiment to determine the effect of the frequency of collisions between atoms or ions of the reactants. They investigate the rate at which aluminum replaces hydrogen from a solution of hydrochloric acid.
Curated OER
Don't Be Tricked By Your Integrated Rate Plot
In this chemistry worksheet, students examine the given concept in order to apply in the laboratory setting. The sheet includes in depth background information.
Chymist
Plop, Plop, Fizz, Fizz
One of the most recognizable commercial melodies was written in 1977, and led to gastronomical relief around the world. Scholars use Alka Seltzer tablets to measure reactants and calculate the chemical equation for the reaction of NaHCO3...
Nuffield Foundation
Monitoring the Body's Reaction to Stress
When stressed, do you prefer the fight or flight response? Scholars observe, measure, and identify the body's response to stress using a well-researched methodology. They learn about the autonomic nervous system, hormones, and more.
Chicago Botanic Garden
Are All Plants Created Equal?
Photosynthesis requires energy and produces food, and cellular respiration produces energy and requires food. An interesting activity analyzes the factors that affect the rates of photosynthesis and respiration. Classes spend one day...
Teach Engineering
Making Model Microfluidic Devices Using JELL-O
Nothing flows like J-E-L-L-O! In the final portion of a four-part series, pupils create scale models of microfluidic devices out of gelatin and bendable straws. They use their devices to test various flow rates in the delivery of...
Curated OER
Rate of Photosynthesis
Students investigate the rate of photosynthesis using elodea leaves. In this photosynthesis lesson plan, students place elodea in a test tube filled with water. They include baking soda and place the test tube under a lamp. Students...
CPO Science
Physics Skill and Practice Worksheets
Stop wasting energy searching for physics resources, this comprehensive collection of worksheets has you covered. Starting with introductions to the scientific method, dimensional analysis, and graphing data, these skills practice...
Utah Education Network (UEN)
Utah Open Textbook: Chemistry
Technology can help save money and add convenience. The resource offers a free textbook for a complete Chemistry course. The text begins with a review of the scientific method and continues to explain topics such as chemical bonding,...
Santa Monica College
The Properties of Oxygen Gas
Scholars generate and collect pure oxygen through a decomposition reaction of hydrogen peroxide in the fourth instructional activity of an 11-part series. Then, they complete six investigations into the properties of oxygen.
Curated OER
Collision Theory Worksheet
In this reactions worksheet, students explain why all reactions have an activation energy using their understanding of collision theory. This worksheet has 4 short answer questions.
Curated OER
Equilibrium, Enthalpy and Entropy
In this chemical reactions worksheet, young scholars determine what is true about a system at equilibrium and give examples of macroscopic properties. Students determine minimum enthalpy and maximum entropy for reactions. This worksheet...
Curated OER
Investigating an Enzyme-controlled Reaction: Catalase and Hydrogen Peroxide Concentration
Are you looking for a way to measure cellular respiration? Try it with pureed potatoes. With some standard high school science equipment, biologists can perform an investigation and collect data surrounding byproducts of respiration. You...
National Nanotechnology Infrastructure Network
Lab 1: Nanocatalysts Clean Your Car Emissions
What a big job for such a small particle. Young scientists learn about the role of nanoparticles in catalytic converters for cars. They conduct an experiment to create alginate-MnO2 catalytic spheres.
Curated OER
Equilibrium
In this equilibrium worksheet, students determine the effect of adding or subtracting items from a reaction. Students determine the equilibrium constant for given reactions. This worksheet has 13 problems to solve.
Curated OER
WS 9.2 Equilibrium
In this equilibrium instructional activity, students fill in twenty one blanks with terms related to reactions and equilibrium. They then solve four problems given chemical reactions and determine equilibrium, moles present at...