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Life-Changing Science Discoveries

Try to imagine life without antibiotics. We wouldn’t live nearly as long as we do without them. Here’s a look at some discoveries that have changed the world. It’s impossible to rank their…

Chemistry: Pure Substances

Pure SubstancesChemistryElements, Compounds, and MixturesPure SubstancesShake It Up: MixturesColloids: Somewhere in BetweenSeparating Mixtures If you're a salesperson, you know the word "pure" is…

DK Arts & Entertainment: Popular Music

WHEN DID POPULAR MUSIC BEGIN? WHAT STYLES OF POPULAR MUSIC ARE THERE? THE CHARTSFIND OUT MOREPopular or pop music is largely vocal and appeals to a large, mainly young audience. It was originally…

Temporary names of elements

The Question: Where do temporary names of new elements come from? The Answer: If you look at a recent periodic table of the elements, you'll…

DK Science: Nitrogen

LIQUID NITROGENLIGHTNINGFERTILIZING SOILEXPLOSIVESNITROGEN CYCLEFIND OUT MORENitrogen is needed to make proteins, which are vital to life. Plants and animals recycle nitrogen through the air and…

DK History: Prehistoric Pottery

WHY WERE THE FIRST POTS SO IMPORTANT? FIND OUT MOREPottery-making was invented in Japanese fishing communities, in c. 10,500 BC. When they cooked, people noticed that the clay soil underneath…

The Wombat

A Curious Creature with A Reinforced Rump by Catherine McNiff AP Photo/Susan Montoya Bryan Related Links Wombat Video Wombat…

NHL All-Star Game: The Outlook

The Outlook In forwards Jagr, Selanne and Forsberg and goaltender Hasek, the World team has quite possibly the four most talented hockey players in... well, the world. The only North American…