Geological timescaleTriassic period: 250–200 million years agoJurassic period: 200–145 million years agoCretaceous period: 145–65 million years agoDinosaurs roamed the planet for about 165 million…
A heat wave is a prolonged period of excessive heat, generally ten degrees or more above average, often combined with excessive humidity. This kind of heat kills. After only…
The Physical Sciences Physics: The study of matter and energy and the interactions between them. Physicists study such subjects as gravity, light, and time. Albert Einstein, a famous physicist,…
