Within the Earth’s stratosphere, ozone is a naturally occurring gas that acts as a sort of sunscreen, protecting the planet from the sun’s harmful ultraviolet radiation. However, in 1985, scientists ...

Elementary students learn to tackle real-world problems and develop their creativity and critical thinking skills through ...

The 18-kilometre-wide caldera (a kind of crater) of the supervolcano was formed as high pressure and heat at the earth’s core caused ... were formed as the thick layer of volcanic ash cooled ...