Chemistry & the Molecular World

Watch

• The most dangerous elements on the periodic table - Shannon Odell ↗TED-Ed
• What is chirality and how did it get in my molecules? - Michael Evans ↗TED-Ed
• The Most Misunderstood Concept in Physics ↗Veritasium
• Alfred Nobel: The Man Who Fooled The World ↗Veritasium
• Decoding the Universe: Quantum | Full Documentary | NOVA | PBS ↗NOVA PBS Official

Read

• The Disappearing Spoon: And Other True Tales of Madness, Love, and the Periodic Table ↗This delightful romp through the periodic table reveals the eccentric personalities and bizarre histories behind the elements, making chemistry accessible and entertaining.Sam Kean
• Uncle Tungsten: Memories of a Chemical Boyhood ↗A charming memoir exploring the author's youthful fascination with metals and experiments, offering a personal and historical window into the wonders of chemistry.Oliver Sacks
• Molecules ↗A concise yet profound exploration of the fundamental building blocks of matter, elegantly explaining how atoms combine to form the diverse molecular world.P.W. Atkins
• Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic AcidThis seminal, concise paper unveiled the double helix structure of DNA, fundamentally reshaping our understanding of heredity and the molecular basis of life.J. D. Watson and F. H. C. Crick
• The Double Helix: A Personal Account of the Discovery of the Structure of DNA ↗A candid and controversial first-person account of the race to uncover DNA's structure, offering a rare glimpse into the human drama of scientific discovery.James D. Watson

Voices to follow

• Frances Arnold ↗Her pioneering work on directed evolution has revolutionised enzyme engineering, enabling the creation of novel catalysts with industrial and pharmaceutical applications.Nobel Laureate in Chemistry; Linus Pauling Professor of Chemical Engineering, Bioengineering and Biochemistry, Caltech
• Jennifer Doudna ↗A co-architect of CRISPR-Cas9 gene editing, her insights into bacterial immunity have unlocked unprecedented precision in manipulating genetic material.Nobel Laureate in Chemistry; Li Ka Shing Chancellor's Chair in Biomedical and Health Sciences, UC Berkeley
• George M. Whitesides ↗His prolific contributions span self-assembly, soft lithography, and molecular electronics, consistently pushing the boundaries of materials science and nanotechnology.Professor of Chemistry, Harvard University
• Roald Hoffmann ↗A Nobel laureate in theoretical chemistry, he uniquely bridges rigorous scientific inquiry with poetic reflection, exploring the philosophical dimensions of the molecular world.Nobel Laureate in Chemistry; Frank H. T. Rhodes Professor of Humane Letters, Cornell University
• Sam Kean ↗Through engaging narratives, he distils complex chemical histories and principles, making the periodic table and its elements compellingly accessible to a wider audience.Science writer and author

Glossary

• AtomAn atom is the tiny, basic building block of all matter. You can't see it even with a powerful microscope, but everything is made of atoms. For example, a single speck of dust contains billions of atoms.
• Chemical BondA chemical bond is the strong force that holds atoms together in molecules and compounds. It's like the "glue" that connects atoms. For example, the bond between hydrogen and oxygen atoms in a water molecule is a chemical bond.
• Chemical ReactionA chemical reaction is a process where substances change into entirely new substances with different properties. This happens when atoms rearrange themselves and form new chemical bonds. For example, when you bake a cake, the ingredients undergo chemical reactions to turn into a delicious new food.
• CompoundA compound is a substance formed when two or more different elements are chemically joined together in a fixed ratio. Unlike a mixture, the original elements lose their individual properties when they form a compound. For example, water (H₂O) is a compound because hydrogen and oxygen atoms are chemically bonded to form something new.
• ElementAn element is a pure substance made up of only one type of atom. You can't break an element down into simpler substances by normal chemical means. For example, gold is an element because every bit of gold is made only of gold atoms; oxygen is another element.
• MatterMatter is anything that has weight (mass) and takes up space (volume). It's basically everything around you and even you! For example, your school bag, the air you breathe, and the water you drink are all forms of matter.
• MixtureA mixture is when two or more substances are combined but are not chemically joined. Each substance keeps its own properties and can usually be separated again. For example, a salad is a mixture of different vegetables; air is also a mixture of gases like nitrogen and oxygen.
• MoleculeA molecule is formed when two or more atoms join together, often from the same element or different elements. These joined atoms act as a single unit. For example, a water molecule is made of two hydrogen atoms and one oxygen atom joined together.
• Periodic TableThe Periodic Table is a chart that organizes all the known elements based on their properties. It helps scientists understand how elements relate to each other and predict their behavior. For example, you can look up oxygen on the Periodic Table to find its symbol (O) and how many protons it has.
• State of MatterThe state of matter describes the different forms matter can take, mainly solid, liquid, or gas. These states depend on how closely packed and how much energy the particles (atoms or molecules) have. For example, water can be a solid (ice), a liquid (drinking water), or a gas (steam), depending on its temperature.

Threads 9

Where this connects to other fields, and why it's worth knowing.

• Art History & Movements Arts & Design

  The Impressionists are famous for painting sunlight outdoors, but they could only do it thanks to chemistry. New synthetic paint colors and the invention of the squeezable metal paint tube let artists finally leave the studio and carry paint into the fields. A movement all about light leaned on factory-made materials to exist.

• The Industrial Revolution History

  A student hunting for a malaria cure messed up an experiment and accidentally made a brilliant purple dye called mauve. That happy accident in a stained beaker kicked off the whole modern chemical industry, and out of the same lab work grew Big Pharma. One botched experiment launched both fashion colors and life-saving medicine.

• The World Wars History

  A chemist named Fritz Haber learned to pull nitrogen out of plain air to make fertilizer, and today that trick feeds roughly half the planet. Then he used the same brilliance to invent poison gas for the trenches of World War One. One mind, one kind of chemistry: it fed billions and it killed thousands.

• Materials, Media & Making Arts & Design

  A famous painting isn't frozen in time, it's slowly rotting on a chemical level: colors fade as they meet oxygen, and clear varnish turns yellow. The people who restore old art are really chemists in a race against the painting's own decay. Every masterpiece is a slow reaction that never fully stops.

• Oceans & Marine Systems Environment

  Ocean acidification sounds abstract, but it's one chemistry reaction happening across the whole planet. CO2 dissolves into seawater and turns into a weak acid, which steals the building material corals and shellfish need for their shells. So our exhaust pipes and smokestacks are literally dissolving the bottom of the ocean food chain.

• Color Theory Arts & Design

  Color isn't paint on the surface, it's molecular shape. Certain chains of atomic bonds soak up specific wavelengths of light and reflect the rest, and that leftover light is the color you see. Blood is red and leaves are green for the very same quantum-chemistry reason, just different molecules doing the absorbing.

• Chemical Engineering Technology

  Chemical engineering uses molecular transformations but must also control how substances flow, react and separate in equipment.

  Sources: U.S. Bureau of Labor Statistics — Chemical Engineers ↗ · ABET engineering program criteria 2025–2026 ↗

• Materials Engineering Technology

  Composition and atomic interactions affect how a material behaves, including its response to a chemical environment.

  Sources: U.S. Bureau of Labor Statistics — Materials Engineers ↗ · ABET engineering program criteria 2025–2026 ↗

• The Periodic Table & the Elements Science

  The table is the index of the molecular world — every molecule is a combination of the elements it organises.

  Sources: IUPAC ↗