26 results for “rock”
Planet Earth
Rocks, Minerals and Fossils
Rocks: three ways to make them A rock is a mixture of minerals, and every rock
Article · 4 min read
Planet Earth
Inside the Earth
rock and metal, hotter than the surface of the Sun at the centre. No one has drilled
Article · 4 min read
Planet Earth
Volcanoes
rock above. And in a few places, plumes of unusually hot rock rise from deep in the mantle
Article · 4 min read
Planet Earth
Plate Tectonics and Earthquakes
rock that floats high on the plates, so they are carried along as the plates move
Article · 4 min read
Planets & the Solar System
The Moon
rocks brought back by the Apollo astronauts showed it is made of material almost identical to Earth
Article · 4 min read
Planets & the Solar System
Comets, Asteroids and Pluto
rock between Mars and Jupiter, and a belt of ice beyond Neptune. Together they hold a record
Article · 4 min read
Planets & the Solar System
Mercury and Venus
rock, the other a world drowned in acid clouds and crushing heat. Sunward of Earth lie two rocky
Article · 3 min read
Life & Biology
The Origin of Life
rocks The oldest convincing fossils are stromatolites, layered mounds built by mats of microbes, from rocks
Article · 4 min read
Planets & the Solar System
Mars
rock Because Mars has low gravity and, for most of its history, no moving crustal plates
Article · 4 min read
Planet Earth
The Atmosphere
rocks that fall from space. Here is how it is built. From the ground the sky seems
Article · 4 min read
Space & the Universe
Space Exploration
rock. Living in orbit After the Moon landings, the focus shifted to staying in space for longer
Article · 3 min read
Life & Biology
Dinosaurs and Mass Extinctions
rock that set forests burning across the globe. Worse came after. Dust and sulphur hurled into
Article · 3 min read
Animals
The Octopus
rock, sand or coral in about a fifth of a second, and pass waves of colour
Article · 3 min read
Matter, Energy & Physics
Energy and Heat
rock on a cliff has potential energy, stored by its position; let it fall and the potential
Article · 4 min read
Chemistry
Acids and Bases
rocks and skin. Many acids are weak and harmless. Citric acid gives lemons and oranges their
Article · 3 min read
Chemistry
Water: The Strangest Ordinary Substance
rocks when water freezes inside them, slowly breaking mountains into soil. The universal solvent Water dissolves
Article · 3 min read
Space & the Universe
Exoplanets: Worlds Around Other Stars
rock, ice or gas. A zoo of worlds Our solar system turned out to be a poor
Article · 3 min read
Plants & Fungi
Carnivorous Plants
rock faces around the world grow hundreds of species that catch, kill and digest animals, from
Article · 4 min read
Matter, Energy & Physics
Sound
rock concert well over 100. Long exposure to sounds above about 85 decibels can permanently damage
Article · 3 min read
Life & Biology
Bacteria and Viruses
rock, in acid, in radioactive waste and in the clouds. There are an estimated five million
Article · 4 min read
Life & Biology
What Is Life? The Cell
rock and the answers come easily at first. Living things grow, move, eat, reproduce and respond
Article · 4 min read
Planet Earth
The Oceans
rock and carries them to the sea in rivers. Water evaporates from the ocean and falls
Article · 4 min read
Life & Biology
Evolution
rocks hold only microbes. Then, about 540 million years ago, animals with shells appear; then fish
Article · 4 min read
Planets & the Solar System
Saturn
rock. That is precisely the combination that supports life at hydrothermal vents in Earth's deep
Article · 4 min read
Planets & the Solar System
Jupiter
rock and ice several times Earth's mass, though NASA's Juno spacecraft has found it may be oddly
Article · 3 min read
Plants & Fungi
Fungi
rock, in deserts and in Antarctica, and are often the first life to colonise new ground
Article · 4 min read
