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Interactive, integrated review activities for all thermodynamics concepts on the AP Chemistry Exam! State functions, change in enthalpy, heats of formation, Hess’s law, calorimetry, entropy, free energy, dependence of free energy on enthalpy and entr...

The College Board course description for AP Chemistry lists the following topics for electrochemistry: electrolytic and galvanic cells, Faraday’s law, standard half-cell potentials, Nernst equation, and prediction of the direction of redox reactions....

How do you determine a balanced chemical equation when you only know the formulas of the reactants? In this interactive demonstration, the method of continuous variation is presented to the students for the oxidation–reduction reaction of sodium hypo...

Promote mastery learning of engaging and relevant “special topics” in the chemistry curriculum with unique, integrated activity booklets! Classroom sets of 24 Nuclear Chemistry or Organic Chemistry Activity Booklets cost just $1.25 per student. Five ...

Promote mastery learning of engaging and relevant “special topics” in the chemistry curriculum with unique, integrated activity booklets! Classroom sets of 24 Nuclear Chemistry or Organic Chemistry Activity Booklets cost just $1.25 per student. Five ...

Iron is an essential mineral for human health. When dietary supplements of iron are recommended, many people turn to over-the-counter pills. What is the form of iron in these pills, and do they actually contain the amount of iron they claim? Have stu...

Whether you are climbing a mountain or diving deep in the sea, the gas laws are always in force! Expand your students’ understanding of the gas laws with this cooperative classroom activity. Kit contains of 15 unique puzzle sheets, each with 12 diffe...

Atomic “puzzler” activity provides a fun way to review core atomic structure concepts! Kit consists of 15 unique puzzle sheets, each with 20 different atomic structure “clues” testing students’ knowledge of atomic number, mass number, isotopes, ions,...

The kinetic-molecular theory may be summarized in one simple phrase—molecules in motion! The demonstrations in this kit provide visual evidence for this important concept. Visualizing molecules in motion helps students understand and compare the kine...

Celebrate April Fool’s Day with the unexpected! Four discrepant event demonstrations engage students’ natural curiosity using the element of surprise. Students may be fooled, but as they predict, observe, and try to explain the results, real learning...

The most important lesson for students to learn in science is also the first—safety first! Engage students’ interest in the essential rules of laboratory safety with this set of four persuasive demonstrations.   • Acid in the Eye—Put on your ...

Challenge your students to solve the puzzle of the unknown solutions. In this guided-inquiry activity, students brainstorm how to match three colorless mystery solutions with the same solutions a partner has. There is one catch—once a course of actio...

Give students a challenge, and they will eagerly compete to meet or beat the goal! Promote inquiry in this guided-inquiry kinetics experiment by using the classic iodine clock demonstration to lay the groundwork for student problem-solving. Students ...

It’s not that hard! Use this water-softening inquiry lab to teach the concepts of water hardness, complex ions, ion exchange, and titration. Water samples with unknown hardness will be treated with ion-exchange resin and analyzed by EDTA titration. S...

Get a charge out of writing with electricity! Demonstrate the key concepts of electrochemistry, including anodic and cathodic reactions, by using a copper “pen” to follow the flow of electrons in the electrolysis of aqueous potassium iodide. Students...

Simple, safe, and exciting “carbide cannon” will blow your students away! Fill the base of the apparatus with a few grains of calcium carbide and add water to produce flammable acetylene gas. Wait a minute, and then ignite the projectile, a soft sock...

Add more color to the classic ammonia fountain demonstration by down-sizing it! Safely collect ammonia gas in jumbo pipet bulbs, place them in a rainbow array of indicator solutions, and give each bulb a gentle squeeze to draw up just a drop of water...

A new twist on an old favorite! The catalyzed decomposition of hydrogen peroxide is a prolific oxygen generator. It’s even more wonderful when yeast is the catalyst and light stick chemicals are added, creating volumes and volumes of glowing foam. Us...

A fun way to shed some light on core chemistry concepts! Using common glow sticks, students learn about chemiluminescence, pH optimization, acid–base chemistry, and the action of a catalyst. Compare the effervescent glow of light sticks with differen...

Demonstrate the relationship between the pressure and temperature of a gas, and accurately determine the value of absolute zero, with this innovative gas law apparatus. Apparatus consists of a Mason pressure flask fitted with a special stopper to ens...

Everyone loves a mystery! A two-toned rectangular block of paraffin is displayed with the darker half on the bottom. Flip it over—the darker half is still on the bottom! As students make observations, ask questions, make predictions, propose experime...

Bananas are a good source of potassium—but do they also contain sodium? This flame test demonstration provides a safe, unique method for observing flame test colors of metal ions—no flammable solvents required! Demonstrate the characteristic colors p...

Students will have no fear as they enter the wildlife “unit-factoring” refuge! Students often forget to include units when solving problems or recording measurements, yet numbers without units are often meaningless. Take the confusion out of dimensio...

The electron, an elementary particle of matter, has a negative charge. Exactly how much electrical charge does one electron have? In the early twentieth century, Robert Millikan quantified the charge of a single electron through a series of carefully...

Sodium polyacrylate, the superabsorbent polymer found in disposable diapers, has a unique ability to absorb prodigious amounts of water. Did you know that it will also remove heavy metal cations from solution? The cross-linked polymer contains a larg...

The “kick” is up and it is . . . GOOD! Fuel-cell field goal! When properly filled with a mixture of hydrogen and oxygen, a plastic pipet bulb can be projected 20–30 feet across a classroom. The goal of this activity is to make a “chemical field goal”...

Break out your inner Picasso! In this “Marbling Paper” lab activity, students will apply the concepts of intermolecular forces, surface tension, solubility, and viscosity to an age-old craft. Utilizing painters’ inks diluted with natural, nontoxic pa...

We use polymers every day! In fact, it is difficult to identify items that do not contain polymers. Despite their tremendous variety, all polymers are basically made by either addition or condensation reactions. Three independent “mini-lab” activitie...

Nanotechnology is the study of the preparation and properties of atomic, molecular, or macromolecular particles in the size range of 1–100 nanometers. An exciting new breakthrough in nanotechnology involves the delivery and transport of medicines to ...

Proteins represent the most diverse class of biological compounds within cells. In this lab, students will quantify the amount of proteins in a sample using a simple color test based on reaction of the protein’s polypeptide backbone with copper ions....

Why are fish jumping out of the water in the heat of summer? Without a critical supply of dissolved oxygen, fish and other aquatic organisms would not survive. How do environmental factors such as temperature affect the level of dissolved oxygen? In ...

Ozone and oxygen are allotropes of oxygen and related molecules, but they have very different properties. Investigate the formation and properties of ozone with this novel, small-scale gas-generating kit. Ozone is produced as a byproduct of the elect...

Deepen your students’ understanding of the factors that affect diffusion with this advanced-level study kit. Students will investigate how three variables influence the rate of diffusion of dye molecules in agar. Explore the quantitative effects of—t...

Transform your science laboratory into a coroner's lab! Students will act as pathologists by conducting an autopsy using simulated blood and urine samples from a prospective mystery corpse. Help students improve their valuable laboratory skills by pe...

Engaging review activities to help students explain and predict mechanisms of biological regulation at the cellular and organismic levels for the AP Biology Exam! The College Board lists regulation as one of the eight major themes for an integrated a...

Teach students to identify and classify chromosome smears according to the Denver System using large magnetic demonstration models of chromosomes! Begin by building a karyotype of a normal male and a normal female on your magnetic classroom board. In...

Get a peek at restriction enzymes in action! Restriction enzymes recognize and cut DNA at specific sequences. First, students simultaneously run two identical DNA samples, one cut with EcoRI and the other cut with HindIII, using gel electrophoresis. ...

Discover the realm of photosynthetic algae and increase student microscopy skills with this kit. Students compare and contrast living and preserved species from the groups Chrysophyta, Euglenophyta, and Chlorophyta, and investigate characteristics of...

Capture electron transfer during photosynthesis—as well as student interest—using a redox indicator. Photosynthesis is the process that traps the energy from sunlight to convert carbon dioxide and water to glucose and oxygen, as well as ATP. In this ...

Exercise your students’ bodies—and their minds—to discover the essential relationship between breathing and cellular respiration! In this interesting lab activity, students determine the relative amount of carbon dioxide in exhaled air before and aft...

Drosophila melanogaster—the common fruit fly—serves as an ideal organism to study the basic laws of heredity in this month-long lab activity. Students will witness inheritance patterns by performing a monohybrid cross between the wild-type and mutant...

What features distinguish living and non-living things? If something is moving and dividing is it considered alive? Do they share any of the same characteristics? By making detailed observations and identifying patterns, students quickly realize the ...

As students help construct and then analyze a pedigree chart of England’s Queen Victoria, they learn about sex-linked traits and the genetic patterns associated with sex-linked inheritance. This 5’ x 2 1/2’ large-scale magnetic chart is easily assemb...

Get students’ blood pumping by playing Cardiovascular System Bingo! Advanced-level game reinforces terminology and understanding of cardiovascular anatomy and physiology using descriptions, names and diagrams. Students gain in-depth knowledge of how ...

Synapses will rapidly fire in students’ minds and bodies as they play Nervous System Bingo! An ideal game for upper-level biology and physiology classes. Students play a game of bingo to gain a greater understanding of nervous system organization, ty...

The human body is constantly exposed to microbes, toxins, dust and pollen—foreign substances that are potentially harmful and may cause disease. One of the most important defenses the body uses to fight these foreign antigens is the production of ant...

ELISA is an acronym for the enzyme-linked immunosorbent assay—a widely used test to screen patients for allergies or certain diseases. In this interactive demonstration, you will guide your students through a realistic simulation of the steps involve...

Simple blood tests can reveal important clues about a person’s overall health. In this hands-on lab activity, students will estimate the amount of hemoglobin in a small sample of blood using a colorimetric method. By comparing the color of their own ...

What is the greenhouse effect? How does the amount of greenhouse gases in the atmosphere affect the temperature of the Earth? Where do greenhouse gases originate? Students will answer these questions and gain a better understanding of the greenhouse ...

How big is your “carbon footprint”? The term is so widely used by the media and the general public that its scientific meaning is often blurred. A carbon footprint is a numerical value that summarizes the amount of carbon dioxide or equivalent greenh...

Why is the sky blue? Illustrate the scientific principles behind this deceptively simple question, and capture your students’ attention, with this convincing demonstration. Students will easily observe the effects of light scattering in reflected and...

The challenge in this inquiry-based kit is to arrange 10 nails so they will hang in perfect balance on the head of one other nail. No other materials may be used! Teachers will enjoy observing the novel problem-solving strategies students use to achi...

Ignite your students’ interest in sound waves! The Sonic Flame Tube, also called a Ruben’s tube, is a demonstration that allows students to visualize waves and resonance. Natural gas is allowed to flow through a 3-foot aluminum tube containing predri...

An economical way for students to test Galileo’s famous hypothesis—acceleration due to gravity is independent of mass. When two steel spheres whose masses differ by a factor of 10 are dropped together, students are shocked that the balls hit the grou...

Rounding a curve too fast on a bike or in a car can be dangerous! Determine the maximum speed an object can safely travel along a curved path under various conditions by analyzing the effects of the radius of a curve, banking the curve, and friction ...

Apertures are used every day, in telescopes, cameras—even the pupil of your eye is an aperture! But how do they work? Use this kit to clearly and simply demonstrate the principles and properties of various apertures. Create apertures using diagrams p...

Add depth to your students’ understanding of magnetism—show it in 3-D! Beautiful demonstration clearly reveals the shape and strength of the magnetic field. Simply fill the special jar-and-tube assembly with oil, add iron filings, shake, and insert a...

Quarks and leptons, muons and bosons—what are all these particles? Move beyond protons, neutrons and electrons and teach students the basics of modern particle physics by playing an exciting game of bingo! Particle Physics Bingo will help students id...

Students use electrical devices every day. An essential safety component of any electrical device is the fuse. By creating a short in a circuit that includes a balloon as the fuse, you can dramatically demonstrate what happens when you “blow a fuse!”...

Shake and light up your classroom! Engage your students by building a flashlight that doesn’t need batteries—it harnesses and stores the power of a handshake. Students see an unforgettable, real-world application of Faraday’s law of magnetic inductio...

Let students see for themselves the difference between a circle and the elliptical path a planet follows as it orbits the Sun. In this hands-on activity, students construct ellipses and then explore the shape of a planet’s orbit as they investigate K...

How do the radius of an orbit and gravitational forces affect orbital speed? In this demonstration, a unique hand-held apparatus will be assembled and used to demonstrate orbital speed and centripetal force. Students will use the data collected durin...

Your class is hiking on a field trip and comes to a large hill. Just how much higher is the top of the hill from your current position? With these handy clinometers, students can indirectly measure the height of tall objects such as hills, trees, and...

Explore important concepts related to groundwater using this activity-station lab kit! Three “mini-lab” activities, each focusing on a specific groundwater-related principle or topic, are included:   • Permeability and Porosity—students perfo...

Investigate groundwater-related concepts while designing and building your own simulated groundwater model! In this inquiry-based activity, a list of groundwater-related features and specific materials will be given to each student group. Students wi...

How does the Earth's rotation affect objects moving over its surface? Innovative activity model gives students hands-on experience investigating how objects move across the surface of a rotating planet due to the Coriolis Effect. Students will study ...

Precious metals in mineral deposits have been discovered and it’s the job of your students to decide which site would be the most profitable to mine—just like real-world geologists! Students extract “gold” and “silver” from ore samples of two differe...

Minerals can form precious gemstones or common salt crystals. What makes one mineral different from another? As students play this Mineral Rummy card game, they learn about the chemical composition of common minerals. Each deck includes 16 colorful p...

Send your students on an adventure to discover how the calcium in their breakfast juice could have once been part of a volcanic eruption! The random method of this interactive exercise helps students understand the dynamic nature of the rock cycle, h...