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.Â
Mascil Project
Drug Concentration
Different medications leave the body at different rates, and how people take them determines their effectiveness. Learners investigate this effectiveness by charting the concentration of a given medication in the body. Using exponential...
Chemistry Collective
Virtual Lab: Unknown Concentration of DNA Solution Problem
Highlight DNA solution with fluorescent dyes! Scholars use dye to determine the concentration of a DNA solution. As the dyes bind with the DNA solution, learners make conclusions about the limiting reactants.
Chemistry Collective
Virtual Lab: Predicting DNA Concentration
Play a little game of concentration! A virtual lab investigation allows learners to predict the products and reactants of a DNA reaction. They make their calculations and then test their predictions in the lab workbench.
Chemistry Collective
Virtual Lab: Cola and Sucrose Concentration Problem
Recreate the secret Coca-Cola formula in a virtual lab. Young scholars create the solution and then calculate sucrose concentrations in terms of percent mass, molarity, molality, and mole fraction. Then using density, learners determine...
Royal Society of Chemistry
A Microscale Acid-Base Titration
Watch as acids and bases put smiles on their faces. Young chemists learn the concept of acid-base titration firsthand in a microscale experiment. Working groups collaborate, titrate, then use their data to determine the concentration of...
Cornell University
Renewable Resins and Composites
Merge chemistry with environmental science to study biodegradable materials. An engaging activity allows learners to experiment with different resin concentrations and composites. Through experimental tests, scholars test their creations...
Science Geek
Reaction Kinetics
Show your classes the science behind rates of reactions with a presentation that explains factors that affect the rate, activation energies, exothermic and endothermic processes, and the proportionality of the product and reactant rates.Â
Virginia Department of Education
Solution Concentrations
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original solution.Â
Mr. E. Science
Acids, Bases and Solutions
If you are not part of the solution, then you are part of the precipitate. The presentation covers solutions, suspensions, solubility, dissociation, and acid/base reactions. This is the 19th lesson in a series of 26.
Curated OER
The "Clock Reaction" Kinetics Lab
Students investigate the effects of temperature and concentration on the rate of reactions. In this "clock reaction" kinetics lesson plan, students change the concentration of one reactant and keep the second constant. An indicator is...
Curated OER
AP Chemistry-Equilibrium Worksheet
For this equilibrium worksheet, students find moles of substances at equilibrium, the effects of changing pressure and temperature on the equilibrium of reactions, the concentration of substances in reactions and the equilibrium...
Curated OER
WS 9.3 Le Chatelier's Principle
In this Le Chatelier's Principle instructional activity, learners are given three chemical reactions along with various disturbances on the systems. They must indicate the effects of each disturbance on the concentrations of products and...
Curated OER
WS 10.7 pH and pOH
In this acid and base worksheet, students answer questions about calculating the pH and pOH of solutions. They complete a table given hydronium ion concentrations, hydroxide ion concentrations, the pH or the pOH and they find the missing...
Curated OER
Reaction Kinetics and Rate Laws
In this reaction kinetics activity, students draw a graph of energy vs. reaction progress and determine the factors which change the speed of a reaction. Students learn about rate laws. This activity has 1 graph, 15 fill in the blanks,...
Curated OER
Water Equilibria
For this water equilibria worksheet, students calculate the pH of solutions, they fill in a table with the type of acid or base given a compound and it's concentration and they calculate approximate solubilities for salts.
Curated OER
Solutions
For this solutions worksheet, students solve twelve problems including calculating products made in reactions, determining limiting reagents, calculating molarity of solutions, determining percent composition, and finding volumes and...
Curated OER
Chemistry Worksheet-Equilibrium
For this equilibrium worksheet, students solve twenty problems including determining the effects of various stresses on chemical reactions, calculating equilibrium constants, determining heat of reactions and writing expression for...
Curated OER
Reaction Kinetics
In this chemical reactions worksheet, students determine the reaction rate for various reactions, write balanced equations, create graphs showing the reaction over time, and calculate the activation energy and potential energy. This...
Curated OER
Chemical Equations
In this chemical equations worksheet, students write mass balance equations and charge balance equations. Students write the system of equations to solve for solution concentrations at equilibrium. This worksheet has 21 problems to solve.
Curated OER
Thermochemistry
Learners begin familiarizing themselves with the concept of energy, systems and state functions. They are introduced to the following concepts: Conservation of Energy, Systems, Heat, Entropy, Enthalpy, and Gibbs Free Energy.
Curated OER
Carbon Dioxide Exercise
Students work in groups, plotting carbon dioxide concentrations over time on overheads and estimating the rate of change over five years. Stacked together, the overheads for the whole class show an increase on carbon dioxide over five...
Curated OER
What Do Concentrations Mean?
Young scholars investigate the concept of climate gases and practice using the appropriate measurement terms. The lesson includes information that is used by the teacher to conduct class discussion or as a source of background for students.
Curated OER
Kinetics and Equilibrium
Students develop an understanding of what a reaction is and factors that affect it. They are introduced to: reaction mechanisms, reaction rates, reaction order, factors affecting reaction rates, Le Chatelier's Principle and Equilibrium.