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DK Science: Electric Motors

ELECTRIC TRAINSBIOGRAPHY: NIKOLA TESLA American, 1856-1943FIND OUT MOREElectric motors make things move. They convert electrical power into mechanical power using electromagnetic attraction and…

DK Science: Electricity & Magnetism

  ELECTRICITY AWESOME FORCE INSIDE AN ATOM STATIC ELECTRICITY CURRENT ELECTRICITY FIND OUT MORE CIRCUITS ELECTRICITY IN THE HOME PROTECTING CIRCUITS BATTERIES…

DK Science: Electricity Supply

HOW ELECTRICITY DELIVERS ENERGYNETWORK CONTROL CENTRESOLAR POWERFIND OUT MOREElectricity comes to homes and workplaces through a huge network of power stations and cables. When the supply fails,…

DK Science: Endocrine System

ENDOCRINE GLANDS OVARIES TESTES HORMONE FACTORY FIND OUT MORE Many body processes are influenced by hormones, chemical messengers produced by glands of the endocrine system. These glands…

DK Science: Energy Sources

ENERGY FROM THE SUNINSIDE A NUCLEAR POWER STATIONRENEWABLE ENERGYGEOTHERMAL ENERGYFIND OUT MOREEverything we do takes energy, which we get from many different sources. Most of the energy on Earth…

DK Science: Energy Waves

OCEAN WAVESBIOGRAPHY: HEINRICH HERTZ German, 1857-1894ELECTROMAGNETIC SPECTRUMSEISMIC WAVESFIND OUT MOREMany different kinds of energy travel in waves. Sound waves carry noises through the air to…

DK Science: Extraterrestrial Life

THE VOYAGER MESSAGELIFE ON EUROPA?SCANNING THE SKYPRIMITIVE LIFELOOKING FOR SIGNALSEXTRASOLAR PLANETSTHE DRAKE EQUATIONFIND OUT MOREEarth is the only world we know of that supports life. But is…

DK Science: Flowering Plants

DICOTYLEDONFLOWERSFIND OUT MOREKnown as angiosperms (which means “seed cases”), flowering plants produce seeds inside the swollen base of the FLOWER, the ovary. Flowering plants make up…

DK Science: Food Plants

PADDY FIELDS IN CHINAVERSATILE FOOD PLANTLIFE CYCLE OF RICECOMBINE HARVESTERS GATHER WHEATCROP ROTATIONSELECTIVE BREEDINGBIOGRAPHY: NORMAN BORLAUG American, 1914-PESTSFIND OUT MOREFood chains begin…

DK Science: Forces & Energy

  FORCES NEWTONS TURNING FORCES COMBINED FORCES FIND OUT MORE DYNAMICS LAWS OF MOTION INERTIA MOMENTUM FIND OUT MORE FRICTION LUBRICATING MACHINERY…