Chemistry Collective
Osmotic Pressure: Spontaneous Balloon Popping
Visualize osmosis using an interactive activity. As learners monitor a simulation, they witness the particle movement through the membrane. A balloon represents the cellular membrane and 'pops' as osmosis creates an imbalance of particles.
Chemistry Collective
Brownian Motion
Explore particle motion between solute and solvents. An interactive simulation allows learners to observe the motion of solute particles as they interact with the solvent particles. It provides an option for including Brownian dynamics...
Chemistry Collective
Chemical Potential: Staircase Demonstration
It's all uphill from here! Scholars examine the pattern of random particle motion up a staircase. The simulation shows how the linear increase in energy corresponds to an exponential decrease in particle concentration.
Chemistry Collective
Inelastic Collisions
That's the way the ball bounces ... if the bonds cooperate! Young scholars use a simulation experiment to explore the bonds between atoms in bouncing balls. They adjust the bond strength of two balls to compare the reactions after the...
Chemistry Collective
Virtual Lab: Coffee Problem
Would you like milk with that? Young scientists consider thermal energy transfer to create the perfect cup of coffee. They calculate the amount of milk needed to reach a specified temperature and then test their calculations using a...
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: Textbook Style Limiting Reagents Problem II
Textbook problems with a twist! Young chemists analyze an ionic reaction to identify the limiting reagent. They then make calculations to determine the concentration of unknown solutions. Finally, they put their work to the test and...
Chemistry Collective
Virtual Lab: Textbook Style Limiting Reagents Problems
Time to test the limits! Young scientists make limiting reagent calculations and test their math using a virtual lab simulation. Using their knowledge of ionic compounds, they determine the limiting reagents and the excess compounds.
Chemistry Collective
Virtual Lab: Stoichiometry and Solution Preparation Problem
Wow your classes with lesson that has a little of this and a little of that! Young chemists test their stoichiometry skills using a virtual laboratory setup. Using reaction information, they work to create a chemical reaction in which...
Chemistry Collective
Virtual Lab: Determining Stoichiometric Coefficients
Investigate the reaction between four unknown substances using a virtual activity. Eager chemists examine the reaction between the four solutions to build a stoichiometric equation. The virtual workbench provides the tools necessary to...
Chemistry Collective
Virtual Lab: Gravimetric Determination of Arsenic
Arsenic in drinking water is a common problem in third world countries. Young chemists create a procedure to calculate the mass percent of arsenic in the soil. The virtual lab allows individuals to experiment with different methods.
Chemistry Collective
Virtual Lab: Alcohol Density Problem
Assume the role of Canadian border control! The percent of alcohol and density of a solution are related. Young scholars use this fact to classify solutions by their alcohol content to determine if they meet Canadian import laws.
Chemistry Collective
Virtual Lab: Identifying an Unknown Liquid from its Density
Mislabeled bottles can cause a dangerous situation! Young chemists design a method for determining the true contents of a solution in a virtual lab activity. Their study of density helps them identify the makeup of the solution.
Chemistry Collective
Virtual Lab: Identifying the Unknown Metal (Metals Density Problem)
A metal's density could be considered its fingerprint! A virtual lab activity has learners calculate the density of a sample of metal to make its identification. The simulation allows individuals to perform the measurements as if they...
Chemistry Collective
Virtual Lab: Making Stock Solutions from Solids
Combine a little solid and a little water and the solution is clear! An experimental lesson has individuals make calculations to create a sample solution of a given volume and molarity. They then create the solutions using a virtual lab...
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...
Chemistry Collective
Virtual Lab: Acid Dilution Problem
There's no risk of injury when working with virtual HCl! Challenge your young chemists with making calculations to create a 3M solution of HCl from the concentrated acid. They first calculate the correct ratios of HCl and water and then...
Chemistry Collective
Virtual Lab: Glucose Dilution Problem
There's no diluted learning here! Young chemists conduct a virtual lab exploration to practice their stoichiometry skills. By manipulating simulated solutions, they create a solution of a specific glucose molarity.
American Sign Language University
ASL Interactive
Go over the building blocks of American Sign Language with an interactive alphabet tool. As learners of all ages hover their cursors over a letter, the image of a hand changes to reflect that letter's sign in ASL.
Hookshot Creative
Compose Your Own Music
Channel the masters with an interactive music composition activity! Learners use the online tool to create their own masterpieces one measure at a time.
English English
English Placement Test
Ninety multiple choice questions make up an interactive test designed to examine scholars' English language proficiency. After completing , learners have the chance to view their results, retest, or preview an answer key.
Royal Society of Chemistry
Aqueous Ions
Lose an electron? You should keep an ion it! Scholars test their knowledge of aqueous ions while completing four puzzles. Each puzzle requires knowledge of the ion, the color of the ion, the precipitate, and the color of the precipitate.
Royal Society of Chemistry
Alcohols (16-19)
Propanol is a common alcohol used in hand sanitizers. The many forms and uses of alcohols fill an intriguing lesson. Scholars apply logic to match alcohols, chemical structural formulas, oxidation products, and more in a series of puzzles.