23 results for “molecule”
Chemistry
Water: The Strangest Ordinary Substance
molecule. A bent little molecule A water molecule is made of one oxygen atom and two hydrogen
Article · 3 min read
Chemistry
The Chemistry of Life
molecules: carbohydrates, fats, proteins and nucleic acids. Here is what each one does. A tree, a mushroom
Article · 3 min read
Plants & Fungi
Photosynthesis: How Plants Eat Light
molecule by molecule and welded into wood using the energy of sunlight. The process is called
Article · 3 min read
Life & Biology
The Origin of Life
molecules that form membranes. In 1953 a graduate student named Stanley Miller sealed water and a mixture
Article · 4 min read
Matter, Energy & Physics
Energy and Heat
molecules. The molecules of the air around you are flying about at hundreds of metres a second
Article · 4 min read
The Human Body
Digestion
molecules that build and fuel you, with help from acids, enzymes and trillions of bacteria. A meal
Article · 4 min read
Chemistry
Chemical Reactions
molecule reacts with two oxygen molecules. The result is one molecule of carbon dioxide and two of water
Article · 3 min read
Life & Biology
DNA and Genes
molecule carrying the complete instructions to build and run you. Here is how the code works
Article · 4 min read
Matter, Energy & Physics
Sound
molecules in front of it together. As it moves back, it leaves a region where the air is spread
Article · 3 min read
Planets & the Solar System
Comets, Asteroids and Pluto
molecules to the young Earth, and may have helped stock the oceans and the chemistry that
Article · 4 min read
Planet Earth
The Atmosphere
molecules of nitrogen and oxygen scatter the shorter blue wavelengths far more than the longer red ones
Article · 4 min read
The Human Body
The Senses
molecules drifting in the air, pressure on the skin: none of these are experiences in themselves
Article · 4 min read
The Human Body
Muscles
molecule called ATP, made by burning sugar and fat with oxygen. Muscles at full effort use energy
Article · 4 min read
Animals
Animal Migration
molecules in the eye or iron-containing cells, and can read both its direction and its strength
Article · 4 min read
The Human Body
The Immune System
molecules, distributed throughout your body, that recognises invaders, destroys them, cleans up the mess and remembers
Article · 4 min read
The Human Body
The Brain
molecules, or what goes wrong in conditions from depression to Alzheimer's disease. The organ that
Article · 4 min read
Matter, Energy & Physics
Atoms
molecules, the scattering of particles fired at gold foil that revealed the tiny dense nucleus in 1911. Today
Article · 4 min read
Planets & the Solar System
Saturn
molecules and hydrogen, chemical evidence that beneath the ice lies a global salty ocean in contact
Article · 4 min read
Animals
The Octopus
molecule rather than the iron-based one that makes ours red. It breathes water through gills
Article · 3 min read
Space & the Universe
Nebulae
molecules in the same volume. The best vacuum chambers on Earth are still denser than most
Article · 3 min read
Animals
Birds
molecules in the eye that respond to it, and use it as a compass. Owls hear
Article · 3 min read
Life & Biology
Bacteria and Viruses
molecule in your body contains nitrogen that was fixed by a microbe. Photosynthetic bacteria in the ocean
Article · 4 min read
Life & Biology
What Is Life? The Cell
molecules are constantly being built, broken down and shuffled about in a controlled chaos that chemists
Article · 4 min read
