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DK Science: Smell

SMELL RECEPTOR CELLS IN ROOF OF NOSE CILIA OF SMELL RECEPTOR CELL FIND OUT MORE Humans have a very keen sense of smell: we can detect thousands of different smells. This ability relies on…

DK Science: Soil

SOIL TYPESDECOMPOSERSFIND OUT MOREMuch of the solid bedrock of the Earth’s crust is covered in soil. This loose, soft material is a mixture of organic matter and particles of rock, made by…

DK Science: Solids

CHANGING SHAPESHAPE MEMORY METALStretchSTRENGTHCRYSTALLINE STRUCTUREFIND OUT MORESolids are one of the three states of matter and, unlike liquids or gases, they have a definite shape that is not…

DK Science: Sound

PERSONAL VOICEPRINTWAVE MAKERCONVERSATION IN SPACESPEED OF SOUNDFIND OUT MOREWhat would our world be like without sound? Complete silence might seem peaceful, but there would be no speech, music…

DK Science: Space

UNIVERSEMATTER IN THE UNIVERSEOUR PLACE IN THE UNIVERSECROWDED CITYOUR PLANETTHE SOLAR SYSTEMOUR GALAXYTHE EXPANDING UNIVERSEWHERE SPACE BEGINSUNIVERSAL FORCESFIND OUT MOREBIG BANGTIMELINE OF THE…

DK Science: Sponges

PHYLUM: PORIFERACALCAREOUS SPONGESTUBE SPONGEFIND OUT MOREThe simplest of all animals, most sponges live in colonies (groups) that are little more than units of cells organized into two layers…

DK Science: Stars

STAR SIZESDISTANCE TO THE STARSCONSTELLATIONSFIND OUT MORELike our Sun, stars are massive globes of intensely hot gas. They produce huge amounts of energy, which is given off as heat and light…

DK Science: Supercomputers

FORECASTING A HURRICANEFIND OUT MOREA supercomputer is a computer that works thousands of times faster than the best desktop personal computer. It does this by combining many processors together…

DK Science: Supernovas

SUPERNOVA 1987ATHE CRAB SNRBIOGRAPHY: JOCELYN BELL BURNELL British, 1943-FIND OUT MOREA massive star dies in an explosion called a supernova. Only the collapsed core remains. If the core is…

DK Science: Taste

PAPILLAE ON SURFACE OF TONGUE TASTE RECEPTOR CELLS IN A TASTE BUD FIND OUT MORE We can taste substances in food and drink thanks to the 10,000 or so taste buds located on structures,…