Colorado State University
How Can You Demonstrate the Different Efficiencies of Different Light Bulbs?
Need a bright idea for an engaging lab? Watch your class light up as they explore the difference in efficiency between incandescent and LED bulbs! The resource makes use of simple materials and encourages learners to infer what's...
Royal Society of Chemistry
A Solid-Solid Reaction between Lead Nitrate and Potassium Iodide
Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...
Royal Society of Chemistry
A Reversible Reaction of Hydrated Copper (II) Sulfate
How can removing water change the color of a substance? Lab partners remove the water of crystallization from hydrated copper (II) sulfate, record their observations, then rehydrate the solid. The resource is printable and contains ideas...
Royal Society of Chemistry
A Giant Silver Mirror Experiment
Mirror, mirror, on the wall ... who's the best chemistry teacher of them all? You'll get the vote for certain after your class completes the Silver Mirror experiment! Partnered pupils use Tollen's reagent and glucose to silverplate a...
Royal Society of Chemistry
A Cartesian Diver—Classic Chemistry Experiments
Sometimes the simplest experiments leave the biggest impression! Introduce young chemists to the Cartesian Diver by having them make one of their own. Use the Diver to further their study of liquids and gases, as well as compression.
Royal Society of Chemistry
The Treatment of Oil Spills—Microscale Chemistry
When oil spills happen, how is the oil cleaned up? Pupils of polymer science discover an amazing substance that turns oil into a solid during a microscale experiment. Individuals observe oil or paraffin before and after addition of the...
Royal Society of Chemistry
Some Reactions of Carbon Dioxide—Microscale Chemistry
Precipitation reactions are always interesting. How about one that forms a precipitate using a gas? Chemists of any age will enjoy this twist on a standard solubility lab. Partners observe the lack of interaction between sodium hydroxide...
Royal Society of Chemistry
Mass Changes in Chemical Reactions—Microscale Chemistry
What better way is there to introduce conservation of mass than a few simple experiments? Young chemists conduct two chemical reactions, take the masses of reactants and products, then compare their results to determine differences in...
Royal Society of Chemistry
Aspirin—The Wonder of Medicine
What do aspirin and the willow tree have in common? Scholars of chemical synthesis engage in a fascinating reaction to make their own aspirin samples. The lab uses thin layer chromatography analysis, includes stoichiometric calculations,...
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...
Royal Society of Chemistry
Investigating Temperature Changes on Evaporating Liquids—Microscale Chemistry
Is there more to evaporation than just less liquid? Show young scientists the energy transformation that occurs during a phase change through a series of simple experiments. Lab partners place drops of water, ethanol, and ethoxyethane on...
American Chemical Society
Exothermic, Endothermic, and Chemical Change
Scientists can't observe bonds breaking or forming, so how do they distinguish between exothermic and endothermic reactions? Young scholars complete two experiments to do just that. They monitor temperature change and calculate the...
American Chemical Society
The Energy Efficiency of Heating Water
Can a small change in laboratory procedures save energy? Scholars test three different methods for heating water in a science lab. Then, they calculate the energy efficiency for each and compare them to determine which uses the least...
American Chemical Society
The Energy of Evaporation
Do all liquids evaporate at the same rate? Young scientists observe the evaporation rate of three different liquids. They measure the time, the temperature, and the change in energy. After comparing the chemical formulas, scholars...
American Chemical Society
Exploring Energy
When asked to list everyday objects that require energy, most people list technology that use batteries or electricity. Through hands-on exploration, young scientists discover energy is much more than just circuitry. They play with...
University of Minnesota
Phantom Limb
A phantom of neuroscience may leave pupils perplexed as they engage in an experimental lesson that recreates a phantom limb scenario. After experiencing the phenomenon, they choose a scientific question to explore further.
American Chemical Society
Combustion and Burning
On Earth, a candle flame points up, but on the International Space Station, it forms a sphere. Young scientists practice their skills by recording observations before, during, and after a candle burns. Chemical and physical changes...
University of Georgia
Would Your Cat Eat This Stuff?
Processed foods use inorganic compounds for flavoring and preservation. This take-home laboratory challenges scholars to find 20 different compounds identified on the labels of foods to list on their data collection sheet. The activity...
Chymist
Tritration: Standardization of a Base and Analysis of Stomach Antacid Tablets
Do antacid tablets really do what they claim? An experimental lesson attempts to answer this question. Individuals practice the process of titration during the first part of the experiment. They then use those skills to neutralize an...
Chymist
An Experiment in Alchemy: Copper to Silver to Gold
Use chemistry to change pennies into gold coins! The experimental procedure leads learners through the process of changing copper pennies to silver and then to gold. They record the mass of each coin through every step of the experiment.
Chymist
Pressure-Volume Relationships: Experiments with 140-mL Syringe
Learners examine Boyle's Law by analyzing experimental results with a hands-on lesson that provides a set of four experiments that illustrate the relationship between pressure and volume of gases. Groups analyze results using...
LABScI
Botany: The Plant Dissection Lab
Study everything about plants! The 12-part series of lessons continues with an examination of many aspects of plants. Components of the laboratory activity address the growth and structure of plants by evaluating familiar plants. The...
LABScI
Genetic Equilibrium: Human Diversity
Investigate the Hardy-Weinberg Principle to explain genetic equilibrium. The 10th lesson plan of a series of 12 is a laboratory exploration of genetic equilibrium. Your classes use a mixture of beans to model allele and genotype...
LABScI
Circulation and Respiration: Vital Signs
What do your vital signs tell your doctor? An engaging hands-on lesson has your learners monitor their own lung capacity, blood pressure, and heart rate. They then connect the vital measures to the workings of the circulatory and...