All Demos

Absorption Spectra

Dyes and neodymium glass absorb portions of the spectrum.
Red Dye Spectrum

Acid-Base Titration Computer Simulation

Acid-Base Titration Computer Simulation A visual approach to learning how to perform acid-base titration procedures, techniques anda the application of sstoichiometry to acid-base titration calculations
Acid-Base Titration Computer Simulaiton Image108

Activity Series of Metals Computer Simulation Metals in Aqueous Solution CSS/JAVA

Select various metals to test in aqueous M2+ solutions. Build an activity series of metals based upon observations of whether or not a metal reacts with a M2+ aqueous solution. Option to view a computer animation at the particle level of the interaction of the M2+ ion with the metal electrode. Based on observations, write the the oxidation-reduction half-reactions. In this activity, students will run simulated tests of various metals in aqueous solutions to determine the relative reactivity of these metals. A total of eight metals will be observed in various combinations with the corresponding metal nitrate solutions and hydrochloric acid. Students will interpret the data collected to construct an activity series of the elements used in this simulation (AACT, 2021).
Activity Series of Metals  Zinc Metal in Aqueous Solutions

Activity Series of Metals Computer Simulation NEW CSS/JAVA Version

Activity Series of Metals Computer Simulation provides students with the tools to develop their own activity series of metals. In this activity, students will run simulated tests of various metals in aqueous solutions to determine the relative reactivity of these metals. A total of eight metals will be observed in various combinations with the corresponding metal nitrate solutions and hydrochloric acid. Students will interpret the data collected to construct an activity series of the elements used in this simulation (AACT, 2021). An effective guided-inquiry student tutorial is available.
Activity Series of Metals Zinc and Aqueous Solutions

Aldol Clock

A solution of cinnamaldehyde and acetone suddenly turns bright yellow after induction period.
Aldol Clock

Amonton's Law

The apparatus consists of a fixed volume metal sphere, which contains a gas, connected to a large pressure gauge. The pressure of the sample of gas varies directly as a function of temperature.
Amonton's Law Apparatus


Students investigate the factors that affect avalanches.

Beer's Law

A flask filled with orange solution demonstrates the dependance of absorbance on path length.

Boiling Water Demonstration: Heating Curve

Heating water from room temperature to boiling water and measuring the temperature of the liquid versus time produces a portion of the Heating Curve for water.
Heating Water Boiling Water Heating Curve Demo

Boiling Water Simulation PhET

Computer simulation of the three states of matter of water as represented by a particulate view: a cluster of atoms or molecules and a simple view of the transition states between the phases of matter: melting, boiling, condensation, freezing.
Phases of Matter Particulate Vew Computer Simulation PHET Univ of Colorado

Buffer Capacity

Acid and base added to buffers of various concentrations to show capacity and how it is affected.

Buffer Capacity of Alka-Seltzer™

Different size tablets of Alka-Seltzer™ dissolved in water will neutralize different amounts of acid and base.
Alka-Seltzer Box

Buffer Solution Demonstration: Acetic Acid/Acetate vs. Water Compare pH

The initial pH of an acetic acid/sodium acetate buffer solution is compared to the pH of deionized water. Universal indicator solutions is used to show the initial pH of both solutions are around 7.0. When small quantities of hydrochloric acid and sodium hydroxide are added to each solution, the buffer solution resists the change in pH while the pH of water changes dramatically - decreases with the addition of a small amount of HCl(aq) or increases with the addition of a small amount of NaOH(aq).
Buffer solution demonstration

Buffer solution pH Computer Simulation

Buffer solution pH Computer Simulation measure the pH of various solutions created by mixing a weak acid (i.e. acetic acid) with the salt of the weak acid (i.e. sodium acetate).
Buffer Solution pH Computer Simulation image 14

Calorimetry Computer Simulation NEW html5 version

Calorimetry Computer Simulation is used to determine the heat exchanged in a variety of physical and chemical processes. NEW html5 version
Calorimeter Acid-Base Thermochemistry

Calorimetry Heat of Solution Computer Simulation

A computer simulation designed to simulate a calorimeter experiment. Determine the heat of solution of a salt. Dissolving various substances in water, measure the mass of the salt, the intial temperature of the water, and the final temperature of the resultant solution.
Heat of Solution Computer Sim Image 54

Cathode Ray Tubes

An electron beam in a catahode ray tube can be deflected with a magnetic or electric field. An electron beam can cause a pinwheel in a CRT to turn. When an object is placed in the path of an electron beam, the rays cast a shadow.
Deflected Electron Beam

Cheeto Calorimetry

Place a burning Cheeto underneath a beaker of water. The burning Cheeto heats the water. The initial and final temperature of the water is measured and recorded. Temperature rise is monitored. The change in temperature is calculated. The heat gained by the water is calculated, q gained by water = mass of the water x specific heat of the water x ΔT. The heat given off by the Cheeto is calculated q loss + g gain = 0 q loss by Cheeto + q gain water = 0

Cobalt Chloride Equilibrium: Influence of Concentration and Temperature

This demonstration illustrates LeChatelier’s Principle: If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract the change. Starting with a red-pink solution of aqueous cobalt (II) chloride, students observe color changes in an equilibirum system due to changes in concentration of chloride ions or cobalt (II) ions. Changes to the temperature of the equilibrium system will change the color of the solution.
Cobalt Chloride Equilibirum Overview Slide Demo


Collapsing Can: Gas Laws Atmospheric Pressure

A small amount of water is heated to boiling in a metal can (aluminum soda/pop can or large 20 L solvent can) filling it with water vapor. The can is removed from heat, sealed, and cooled. Alternatively, a vacuum is applied to an empty can, as the air in the can is evacuated, the can collapses. In both cases the can collapses quickly and dramatically. The collapsing of the can is due to the greater applied atmospheric pressure compared to the less pressure inside the can.
Collapsing Can Demonstration image261

Common Ion Effect

The addition of concentrated hydrochloric acid to a saturated solution of sodium chloride causes solid sodium chloride to precipitate out.

Comparing Specific Heats of Metals

Comparing specific heats of metals, a guided-inquiry investigation. Two metal samples (Al and Pb) have the same mass and the same intitial temperature are each placed in separate 50.0 grams of cool water at the same temperature. Which metal will raise the temperature of the 50 grams of water the most? The metal with the higher specific heat will release more heat as it cools and thus will raise the temperature of water more compared to a metal with a lower specific heat. This interactive demonstration focuses on helping students gain a better conceptual understanding of heat, temperature, and specific heat.
Calorimeter Diagram Image12

Conductivity of Electrolytes Demonstration

When a current is applied to an aqeous solution, strong electrolyte solutions light up a light bulb, weak electrolyte solutions dimly light a bulb, and nonelectrolyte solutions do not light a bulb.
Comparing stong, weak, and non-electrolyte solutions: Conductivity

Copper-Ammonia Complex

Copper chloride solution forms a pale blue precipitate then a deep blue solution as ammonia is added.
Copper Hydroxide

Counting Units

A pairs, a dozen, a six-pack, a gross, and a ream are used to introduce the mole.

Crystal Models

A collection of thirteen models of metallic and ionic crystal lattices for display in classroom.
Sodium Chloride Model

Daniell Electrochemical Cell (Galvanic Cell) and the Gravity Galvanic Cell

In the original version of the Daniell cell a porous cup containing sulfuric acid and a zinc electrode is placed in a copper container filled with 1.0 M copper(II) sulfate solution.
DaniellCell image28

Demo Show Demo Descriptions

Descriptions and risk management plans of all demos used in demo shows.
Hydrogen Balloon

Demo Spreadsheet

An Excel spreadsheet to aid instructors in the selection of demos.


Containers filled with equal volumes of substances of varying densities.

Dissolving an ionic salt in water Computer Simulation and Computer Animation

A short computer animation illustration how positive and negative ions in a solid ionic compound dissolve in water might be used to accompany the dissolving salts in water demonstration.
NaCl Dissolves in Water Animation Image341

Dissolving Ionic Salts in Water Demonstration

Several ionic salts (calcium chloride, ammonium nitrate, potassium chloride, magnesiium sulfate, lithium chloride, anhydrous sodium acetae, anhydrous sodium carbonate) are dissolved in water in a calorimeter. A thermomters measures the intitial temperature of the water and the final temperature of the resultant solution. Dissolving ionic salts in water can be used to illustrate formation of Solutions, Enthalpy, Lattice Energy, etc.

Dry Erase Markers

Students can write on the walls of Columbia 150 using dry-erase markers.
Dry Erase Markers

Electric Pickle

A whole pickle is placed between two metal electrodes and electricity is passed through the pickle. The characteristic color of a sodium vapor lamp is emitted.
Electric Pickle Demonstration

Electrochemcial Cell Demonstration Voltaic Cell: Zinc/Copper E° = 1.10 V

A standard Zinc/Copper Voltaic Cell: Zn(s) in 1.0 M zinc sulfate solution, Cu(s) in a 1.0 M copper(II) sulfate solution, salt bridge and voltmeter, E°cell = +1.10 Volts.
Zinc Copper Voltaic Cell Demo

Electrochemical Cells Computer Simulation: Voltaic Cells: Zn Cu Ag

Computer Simulation of various voltaic cells involving Zn Cu and Ag metal electrodes and aqueous solutions of zinc sulfate, copper(II) sulfate, and silver nitrate. Choices of concetration of solutions are available to investigate concentration cells. Computer animations of the oxidation and reduction half-reaction processes occuring in electrochemical cells: Voltaic Cells. Computer Animations of the migration of ions in a salt brdige and the movement of electrons in a wire.
Zn/Cu Voltaic Cell mage of a computer simulation

Electrolysis Active Learning Instructional Sequence

Electrolysis Active Learning Instructional Sequence. using a) an instructional activity sheet, b) the electrolysis computer simulation, c) electrolysis lecture demonstrations, and d) PowerPoint Notes to guide the flow of instruction.
Zn/Cu Electrolysis Cell Computer Simulation Result

Electrolysis Computer Simulation New HTML5 Version

Electrolysis metal-metal cells computer simulation New HTML5 Version
A copper-copper electrolysis cell

Electrolytic Cell: Plating Copper on Copper Demonstration

Electrolytic Cell: two copper electrodes in 1.0 M CuSO4(aq) are connected to a D.C. Power Supply. When current is applied to the electrolysis cell copper(II) ions are reduced to copper atoms at the cathode and copper atoms are oxidized to copper(II) ions at the anode. The time to plate the metal is recorded along with the current (amps).
Cu/CU Electrolysis Cell Demo image

Entropy ParaDice

A classroom set of two six-sided dice per student (one red and one white) provides an interactive activity that helps students to understand the nature of entropy.
Entropy Dice in Box

Ethanol Cannon

Combustion of ethanol vapor shoots a stopper out of a bottle.
Ethanol Cannon Setup

Fehling Test

When blue Fehling's reagent is added to glucose and fructose solution a brick-red precipitate forms - no rxn with sucrose.
Fehling Test

Flame Test

Flammable solutions of metal salts are sprayed into a burner to create colorful flames.
Rb Flame Test

Gas Law Simulation Kinetic Molecular Theory Simulation New HTML5 Version

This simulation provides the ability to change the conditions (pressure, volume, temperature and number of moles of gas) of ideal gases, determine their relationships, and observe how the change affects the behavior of gas particles. The postulates of the Kinetic Molecular Theory are illustrated at the particulate level of matter.All of the Gas Laws can be investigated: Boyle's Law, Charles' law, Amonton's Law, Dalton's Law of Partial Pressure, and Graham's Law.
Gas Law Simualtion  Kinetic Molecular Theory  Simulation

Graham's Law of Diffusion: Helium Voice Wizard of Oz Munchkins

Instructors and the Lecture Demonstrator dress up as the Lollipop Guild people in the Wizard of Oz and sing the Lollipop Guild song with Helium gas in their voice box
Lollipop Guild Wizard of Oz Image956

Heat of Neutralization Reaction II: HCl(aq) + NaOH(aq) Amounts of Reactants

Amounts of reactants influences the change in temperature and the heat exchanged during an acid-base neutralization reaction, HCl(aq) + NaOH(aq), but the value for the change in enthalpy is constant.
3M HCl + 3M NaOH Calorimetry Demo

Heat of Neutralization: HCl(aq) + NaOH(aq)

Heat of Neutralization: The initial temperature of 50.0 mL of 3.0 M HCl and a 3.0 M NaOH are measured using a digital thermometer probe. The HCl and NaOH react a calorimeter. The final temperature of the resultant solution is measured. The heat exchanged between the chemcial reaction and the solution is calculated. The change in enthalpy of the reaction, ∆H, the heat of neutralization is determined.
HCl and NaOH react in a calorimeter: Heat of Neutralization

Household Chemicals

A collection of household chemicals for exhibit in the classroom.
Household Chemicals

Household Fenton's Reagent

Potassium hydrogen tartrate is oxidized to produce carbon dioxide in an exothermic reaction.
Iron Ion

Hydrolysis of Salts: pH

When soluble ioinc salts are dissoved in water the pH changes due an increase or decrease of hydronium ions, plus oher ions. Hydronium ions generated or consumed by the conjuate acid-base pairs, cause the pH to change and cuase a corresponding acid-base indicator color change.
Salt Solutions on Overhead

Indicator Cylinder

Dry ice changes the colors of a universal indicator solution.
Indicator Cylinder

Intermolecular Force Activities Pure Substances and Mixtures: Parts I, II, III and IV

Activity Parts I and II: Students work in pairs to model intermolecular forces by labeling and manipulating plastic arrows and rectangles: General structures, IMFs in pure substances, IMFs in a mixture. Activity Part III: Students work in pairs by labeling and manipulating plastic arrows and rectangles with specific structures, or real compounds: KBr, ethane, ethanol, dimethy ether; identify IMFs in pure substances and IMFs in a mixture, place the arrow with the IMF to connect opposite charges.
dipole-dipole IMF interaction Activity Image740

Intermolecular Forces and Molecular Models Activity

Students work in groups to construct 3D molecular models. and connect the models by rubber bands representing an intermolecular force. Students a. identify the partial positive charge atoms and the partial negative charge atoms in each model that are involved in the IMF, b. calculate the difference in electronegativity between the opposite charged atoms, c. select the appropriate rubber band width to correlate with the strength of the IMF between models, d. correlate the strength of the IMF to a physical property of the liquid state of the compound - boiling point, vapor pressure, and Heat of Vaporization.
Two Ethanol Models Hydrogen Bonding Intermolecular Force Image1210

Iodine Clock Reaction: Influence of Concentration on the Rate of Reaction

Two colorless solutions are mixed and after a brief induction period, the resultant colorless clear solution suddenly turns to a blue-black color. Changing the concentration of reactants in this clock reaction changes the induction period. This demonstration can be performed qualitatively or quantitatively.

Le Chatelier's Principle - Copper Ion

A copper(II) chloride solution alternates between blue and green when ligand concentrations change.
Le Chatelier Green

Lightstick Reaction Rates versus Temperature

Light sticks glow with different intensities at different temperatures, illustratinh how temperature affects rates of reaction.
Light Sticks

Limiting Reactant: Reaction of Mg with HCl

Limiting Reactant: Reaction of Mg with HCl The amount of hydrogen gas produced by the reaction of three different quantities of Mg in the same numbere of moles of HCl is observed. Students are provided with the moles of magnesium and moles of hydrochloric acid and are asked to predict the relative amount of hydrogen gas produced in each reaction. Students determine the limiting reagent in each flask.
Limiting Reactant

Liquid Water Molecules Simulation RoyTasker VisChemProject

Liquid Water Molecules Animation at the particulate level of representation RoyTasker VisChemProject. An excellent and accurate representation and animaiton.

Liter Cube

A wooden cubic decimeter is cut up into cubic millimeters.
Liter Cube


Lycopodium powder bursts into a fireball when dispersed.
Lycopumpkin Setup

Magnesium and Hydrochloric Acid

Magnesium metal reacts with hydrochloric acid react to produce bubbles of hydrogen gas and aqueous magnesium chloride.
Mg and HCl Setup

Melting Ice Simulation by Roy Tasker and the VisChem Project

Melting ice is illustrated using a particulate level of matter computer animation (developed by Roy Tasker and the VisChem Project).
Ice Structure ParticleView Roy Tasker Image56

Mole Sampler

A collection of one mole of various elements and compounds. "Testing"
Mole Sampler

One In A Million

A transparent globe filled with about a million nonpariels.
One In A Million

Oregon Young Scholars Program

Hi, young scholars! Look here for postings and downloads and stuff..
Sesa Woruban

Outreach Program Document Templates

Template documents for approved chemistry demonstration outreach program.


Periodic Trends Computer Simulation

Periodic Trends Computer Simulation A computer simulation providing data for student to explore the periodic trends with respect to atomic radius, first ionization energy, electron affinity, ionic size, etc.
Periodic Trends Computer Simulation Image914

Photoelectric Effect

An electroscope is used to convey a basic concept of the photoelectric effect. UV light discharges a negatively charged zinc plate and the leaves of the electroscope move closer to each other.

Photoelectric Effect Computer Simulation PHET

An excellent computer simulation enabling students to visualize many aspects of the photoelectric effect experiment.
Photoelectric Effect PHET Computer Simulation Image 125

Precipitation of Lead(II) Iodide

When lead(II) nitrate and potaasium iodide are mixed in water, students observe the formation of a bright yellow precipitate, lead(II) iodide.
Precipitation of lead(II) iodide

Properties of Polymers

In this hand-on class activity, samples of various polymers classes illustrate variable properties within and between classes.

Properties of Two Ionic Salts (Crystals): Halite and Calcite

When a large halite crystal, NaCl(s), is struck with a hammer, it cleaves evenly, 90° straight edges. When a large calcite crystal, CaCO3(s), is struck with a hammer, it cleaves at a slant angle. A crystal of halite, sodium chloride, does not conduct, but when it is pulverized and dissolved it does conduct. A crystal of calcite, calcium carbonate, when placed in water does not dissolve.
Why ionic compounds crack Demo Setup Image853


A Geiger counter indicates the presence of radioactive sources.
Radioactivity Setup

Small Scale Model Kits

A high quality set of molecular model kits that students can use at their seats.
student model kit samples

Solubility of Carbon Dioxide

Two bottles of carbonated water are opened, one cold and one warm and agitated. The warm one spurts all over.

Solutions: Like Dissolves Like Solubility and Intermolecular Forces

Water and Hexane are the solvents. Iodine and potassium permanganate are the solutes. Iodine dissolves in hexane. Potassium permanganate dissolves in water.
Like Dissolves Like: Hexane, Water Iodine KMnO4 Image

Standing Waves

Standing waves are generated in a weighted length of rubber tubing.
Standing Wave

States of Matter Solid, Liquid, Gas: Computer animations

Individual States of Matter Solid, Liquid, Gas and represented by Computer animations Boiling, Freezing, Vapor Pressure are implied.
Microscopic View of a solid and of a liquid Purdue Univ.

SuperChem 221 Schedule

This page allows you to view the current Superchem schedule. Please do not click the "Schedule Demo" button.

Synthesis of Nylon

When two immiscible solutions are poured into a dish, solid nylon forms at the interface.
Nylon Setup

These Are Not the Bonds You're Looking For: Introduction to Resonance Structures

A parody of one scene in Star Wars Episode IV A New Hope. Obi-Wan Kanobi, Luke Skywalker, C3PO and R2D2 enter Mos Eisley on Tatoonie. They are stopped by Stormtroopers and questioned about the droids they are transporting. In the skit, Obi-Wan Kanobi and Luke Skywalker are tranporting ozone and calcum carbonate.
These Are Not the Bonds You're Looking For Resonance structures Image 870

Three States of Matter: Solid, Liquid, Gas Particulate Animation

Three States of Matter: Solid, Liquid, Gas re represented at the particle level (molecular scenes) by a series of Particulate Animations.
States of Matter  Solid Liquid Gas Particulate Animation


A small metal ball falls much more slowly through glycerine than through water.
Viscosity Setup

Voltaic Cell: Standard Hydrogen Electrode Demonstration

A Standard Hydrogen Electrode (SHE) is used to show the E°cell generated when a SHE is connected to a zinc or a copper half-cell.
Standard Hydrogen Electrode Cu Cell Demo

Volumetric Glassware

A collection of various devices used to measure volume in the lab.
Volumetric Glassware

VSEPR Balloons

Ballon shapes demonstrate the principle of electron-pair repusion.

VSEPR Molecular Shapes Student Model Kits

Students visualize and represent molecules in 3-Dimensions. High quality plastic individual model kits for VSEPR configurations are used to enable students to build molecular models. Using an active learning approacah, given a molecular formula, students draw the Lewis Structure, Identify the total regions of electron domains around the central atom, build the model of the molecule, draw a 3D representation of the molecule, identify the molecular shape, identify the bond angles, and classify the molecule as polar or non-polar.
Student Using VSEPR Models

Zinc Complex Ion Formation

Zinc ion is precipitated by sodium hydroxide. The addition of more hydroxide redissolves the precipitate.

© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group