Freeze-thaw weathering occurs when rocks are porous (contain holes) or permeable (allow water to pass through). Water enters cracks in the rock. When temperatures drop, the water freezes and expands ...

Amid a global pandemic in 2020, the world watched as George Floyd was killed. The beast that is racial injustice was split right open, laid bare for all to see. We were forced to examine the very ...

The rocks on Earth are constantly changing due to many different processes. There are three main types of rock, with rocks changing between each type over millions of years. This rock recycling is a ...

This story is part of SELF's ongoing series exploring black maternal mortality. You can find the rest of the series here. Imagine for a moment that you’re a very silly 22-year-old driving through ...