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How Chemistry Surrounds You

Uncover the surprising chemistry behind everyday life—from chocolate and smartphones to sunshine and seawater—in an entertaining and informative course taught by an award-winning professor.
Guidebook
 
 
Rated 5 out of 5 by from Good Re-Introduction to Chemistry I was not a science major in either highschool nor college. However, I've always had a keen interest in Chemistry. Recently, I began viewing Dr.Davis' excellent course on Chemistry. Although highly engaging and informative, I still felt as I was missing something. After searching for the Chemistry offerings a few days ago , I discovered this course . At the time , I hadn't realized it was a newly released course . After watching a few lectures, I was instantly hooked. The professor is great , and the demonstrations are very helpful. This is exactly what I was looking for ! I am a little surprised, that the GC did not put a disclaimer on the screen about doing experiments at your own risk. Most other science courses plainly have this disclaimer. I'm more than half way through with this course , and I highly recommend it
Date published: 2026-06-05
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How Chemistry Surrounds You

Trailer

Bubbles! How Chemistry Is Everywhere

01: Bubbles! How Chemistry Is Everywhere

Why do bubbles fizz in soft drinks and linger in a bubble bath? Professor Janis Louie uses everyday bubbles to introduce the basic principles of chemistry: how atoms bond into simple molecules such as CO₂ and H₂O, what "valence" means, how catalysts speed reactions, why surfaces hold together, and how surfactants stabilize foam. It's an effervescent start to a rich and fascinating subject.

29 min
The Chemistry of Water and Life

02: The Chemistry of Water and Life

Despite being one of the most familiar things in everyday life, water is anything but ordinary. Discover its remarkable properties, many arising from its polarity--an uneven distribution of electrical charge that allows molecules to attract one another. Water's polarity shapes everything from cell metabolism to cooking to the weather. Contrast its behavior with that of fats and oils.

30 min
Gold, Silver, and the Science of Bling

03: Gold, Silver, and the Science of Bling

Delve into the science of sparkle. What gives gold, silver, and other precious metals their enduring appeal--and their surprising practical uses? Discover how metallic bonding explains the special properties of metals: conductivity, strength, high boiling points, and, of course, luster--the ability to reflect light so well that mirrors can produce nearly perfect images of the world.

27 min
Combustion: From Fire to Fireworks

04: Combustion: From Fire to Fireworks

Starting with the chemistry of combustion that produces the flickering flames of a campfire, move on to the challenge of creating fireworks, which cannot rely on oxygen in the air. Instead, choose a compound--such as potassium nitrate--that releases oxygen when heated. Add fuel and an accelerant, then ignite. Find out how vivid colors are produced at the height of a skyrocket's flight.

28 min
Acids, Bases, and Chemistry for Your Skin

05: Acids, Bases, and Chemistry for Your Skin

Explore the science behind cleansers, emollients, exfoliants, and other skin care products. More than pleasantly scented lotions, they are carefully crafted chemicals that balance pH, interact with the skin's natural oils, and act on different layers of the skin--cleansing the surface, retaining moisture, and promoting renewal. Beauty, it turns out, has a chemistry of its own.

26 min
Scattering, Sunsets, and Rainbows

06: Scattering, Sunsets, and Rainbows

Do you love blue skies, red sunsets, fluffy white clouds, and many-hued rainbows? Thank chemistry. Study how sunlight interacts with molecules and droplets in the atmosphere to produce a range of colorful effects, due to reflection, refraction, dispersion, Rayleigh scattering, and other phenomena. Learn how a glass of water, a flashlight, and a few drops of milk beautifully reveal what's going on.

28 min
Balloons: Density and Polymers

07: Balloons: Density and Polymers

From party balloons to the ill-fated airship Hindenburg, explore the chemistry that gives gases lift. See how density, temperature, and the ideal gas law govern buoyancy, and why helium and hydrogen rise while heated air can do the same. Examine the limits of lift, and the molecular structure of polymers that give latex balloons their strength, stretch, and surprising resilience.

28 min
Lighting the Night: From Candles to LEDs

08: Lighting the Night: From Candles to LEDs

Analyze a candle flame to grasp the chemical complexity of illumination: heat from the flame draws liquid wax up the wick, where it vaporizes and burns, producing light. Then turn to carbon arc lamps and the once-ubiquitous incandescent bulb, now being replaced by light-emitting diodes (LEDs), which produce light by electroluminescence, generating more light and less heat than older technologies.

26 min
The Chemistry of Your Pets

09: The Chemistry of Your Pets

Professor Louie uses the soft fur of cats and dogs and the suppleness of bird feathers to introduce organic chemistry--the science of carbon compounds in living things. Examine how amino acids link into proteins such as keratin, which can have different properties depending on their chemistry and shape. Also discover how reagents help identify proteins and how denaturing changes their structure.

29 min
Fragrances and the Chemistry of Smell

10: Fragrances and the Chemistry of Smell

More than beguiling scents, perfumes are orchestrated symphonies of molecules, designed to play on our desires. Study the sense of smell--an exquisite chemical detection system that can distinguish among nearly identical molecules. Learn the importance of functional groups, which are specific arrangements of atoms that interact with receptors in the nose, evoking memory, attraction, or alarm.

26 min
Sugars and the Science of Sweetness

11: Sugars and the Science of Sweetness

Indulge your sweet tooth by delving into the science of sugary treats. Candy is a playground for chemistry, with every bite packed with fascinating science, from crystallization and emulsions to phase changes and nucleation. Investigate carbohydrates, especially simple sugars and polysaccharides (long chains of sugar molecules), and get tips for making rock candy, taffy, and marshmallows.

28 min
The Chemistry of Color

12: The Chemistry of Color

Painting is chemistry made visible, with each brushstroke revealing how electrons in molecules interact with light to create color. Trace the search for pigments from prehistory to modern times, when industrial chemists design new pigments by tailoring molecular structures so their electrons absorb specific wavelengths of light, producing brilliant and sometimes entirely new colors.

28 min
Reading Chemistry: Paper and Ink

13: Reading Chemistry: Paper and Ink

Books are a scientific marvel--from the cellulose in wood pulp used to make paper, to the hydrogen bonds that hold each sheet together, to the pigments, binders, and solvents that create ink. Consider the technology behind a printing surface that is strong, durable, and long-lived, yet just absorbent enough for inks that must be similarly permanent and of the right viscosity--all owing to chemistry.

26 min
Resonance and the Science of Sound

14: Resonance and the Science of Sound

Music may seem like pure physics, but its sound depends on chemistry. Explore how the molecular structure of wood, metals, and polymers shapes the vibrations of strings, reeds, and horns, and how resonance amplifies these vibrations. See how metal alloys help give instruments their voice and how Faraday's law allows vibrating steel strings to generate electrical signals in guitar pickups.

27 min
Glittering Gems and Crystal Chemistry

15: Glittering Gems and Crystal Chemistry

Investigate the chemistry of gemstones such as sapphires, rubies, and diamonds. Find out how atoms assemble into crystals deep within the Earth, forming orderly lattices that give gems their strength and shape. Learn how impurities and subtle flaws create vivid colors, and how light bends and reflects within the crystal--through refractive index and fluorescence--to produce brilliance and sparkle.

27 min
Flowers: A Natural Laboratory

16: Flowers: A Natural Laboratory

Flowers are sophisticated chemical factories with one overriding goal: aiding the reproduction of the plant species. Explore how flowers deploy sweet nectar as fuel, eye-catching pigments as visual signals, and aromatic molecules as scent. Together these chemical cues guide insects and birds to the flower, ensuring pollination. Along the way, discover why green is a rare color for flowers.

26 min
Clothing and the Chemistry of Fashion

17: Clothing and the Chemistry of Fashion

Next time you put on an outfit, remember this: It's not just fashion--it's chemistry. Cotton and linen come from cellulose, wool and silk from protein fibers spun by animals. Modern fabrics such as nylon, polyester, and acrylic are synthetic polymers designed by chemists. Learn how molecular structure gives fabrics their strength, softness, and stretch; and watch nylon being made before your eyes.

29 min
Smartphones: A Chemical Marvel

18: Smartphones: A Chemical Marvel

From lithium-ion batteries to silicon semiconductors to rare earth phosphors, smartphones are a wonder of modern chemistry. Learn how lithium chemistry stores energy in a pocket-sized battery, why the humble element silicon became the foundation of modern electronics, and how the touchscreen--an ultrathin layered "chemical sandwich"--detects the electrical conductivity of your fingertip.

23 min
Coffee, Tea, and Chemistry

19: Coffee, Tea, and Chemistry

Dive into the chemistry of coffee and tea, exploring the molecules that shape their flavors, aromas, and effects on our bodies. Roasting transforms green coffee beans into a complex mixture of aromatic compounds, while the processing of tea leaves--from delicate green teas to oxidized black teas--creates distinct flavor profiles. Brewing at different temperatures further alters this chemistry.

30 min
Game On: Sports Chemistry

20: Game On: Sports Chemistry

Sports depend on chemistry as much as skill. Examine why different balls bounce differently by comparing their coefficients of restitution, and see how modern running shoes use layered polymers to deliver grip, cushioning, and spring. Then, explore the chemistry of muscle performance and hydration during exercise. Discover how to make your own delicious sports drink to keep your muscles firing.

26 min
The Science of Chocolate

21: The Science of Chocolate

Savor one of the masterpieces of chemistry: chocolate. How does a virtually inedible bitter bean become the sweet, smooth confection we love? Fermentation and roasting create rich flavor compounds, while grinding and emulsifying blend cocoa solids and cocoa butter. Careful tempering controls cocoa-butter crystallization, producing chocolate that is smooth, glossy, "snappable"--and delicious.

27 min
Happiness and the Chemistry of Joy

22: Happiness and the Chemistry of Joy

It's easy to think of happiness as purely emotional. But underneath, it's chemistry. Probe the brain's overlapping neurochemical systems--dopamine, serotonin, oxytocin, endorphins, and endocannabinoids--that shape motivation, pleasure, connection, and calm. Learn what stimulates these chemicals, what they do in the brain, how long their effects last, and how drugs like opiates hijack their pathways.

30 min
Chemistry Comes to Dinner

23: Chemistry Comes to Dinner

See how chemistry transforms ingredients into the makings of a gala dinner--from clay and metal alloys for the china and cutlery, to the beverage, soup, entre, and dessert for the banquet. Fermentation, hydrolysis, denaturing, and other processes come into play, making this lecture a delicious review of concepts introduced earlier. You even cover the neurochemistry that enlivens conversation.

30 min
Earth Chemistry at the Beach

24: Earth Chemistry at the Beach

Close the course at the beach, where the diversity of chemical processes prove that chemistry never takes a rest. Every grain of sand, splash of seawater, and seashell tells a molecular story. Even your swimwear, sunscreen, and sunglasses are products of chemistry. Finally, explore the role of sands and shells in regulating atmospheric carbon--and the disruptive effects of human activity.

33 min

Overview Course No. 10550

Think you know chemistry? Think again. In How Chemistry Surrounds You, award-winning University of Utah professor Janis Louie reveals the surprising science behind the everyday world—no lab coat required.

Chemistry is the science of how atoms combine and rearrange to produce the colors we see, the flavors we taste, the materials we use, and the technologies that shape modern life.

Rather than beginning with abstract principles, Professor Louie starts with familiar mysteries: Why is the sky blue? How does chocolate achieve its unique appeal? Why do some fabrics stretch while others shrink? Like a detective solving a series of baffling cases, she uncovers the invisible molecular processes behind a host of everyday phenomena. Along the way, you learn core chemical ideas, such as how atoms bond, how reactions release or absorb energy, and how molecular structure determines properties such as color, flavor, and strength.

Filled with memorable demonstrations, the course shows chemistry in action—from the surprisingly complex events in a burning candle to a pH detector that you can make in your kitchen with red cabbage. Dramatic highlights include a gummy bear blasting like a rocket, nylon drawn from two liquids, and the foamy eruption of “elephant toothpaste.”

By the end of the course, chemistry emerges not as a difficult subject confined to the lab, but as the hidden machinery of our surroundings. Before you know it, you’ll be seeing chemistry at work everywhere.

About

Janis Louie

My mission is to inspire you to see chemistry, not just as some distant thing that happens in laboratories, but as something you can see happening literally anywhere you look in our world.

INSTITUTION

The University of Utah

Janis Louie is a Professor of Chemistry and Henry Eyring Fellow at the University of Utah. She received her PhD in Chemistry from Yale University. Her research in organic, inorganic, and polymer chemistry works to combat obstacles in traditional synthetic chemistry. A Fellow of the American Association for the Advancement of Science, she has received numerous accolades, including the Camille Dreyfus Teacher-Scholar Award, and has been honored as an IF/THEN Ambassador for women in STEM careers.

By This Professor