Steam is water that's heated to two hundred twelve degrees Fahrenheit. Believe it or not, steam is invisible; you can see right through it.
As sunlight enters our atmosphere, it bends slightly. This is due to refraction, the same thing that makes a pencil look slightly askew when you stick it half way into a glass of water.
Information about when to germinate is imprinted by the mother plant in the seeds’ genes—essentially turning certain genes off that regulate germination.
Çatalhöyük's long period of excavation and its wealth of well-preserved artifacts and archaeological remains has made it an indispensable source of data about human prehistory.
Around 10,000 years ago, humans first domesticated plants and animals, started living in fixed, urban areas called cities, and organized themselves into complex societies.
The oldest tree in Europe is a 1,230 year-old Heldreich's pine living in southern Italy.