Yellowstone was the first national park in the U.S. in 1872 because of its amazing hot springs and geysers, which look like they’re from another world. It’s rare to see grizzly bears and wolves living alongside bison and moose in the same place. Yellowstone isn’t just a wild place; it really is wild. Beneath the ground, there’s a big volcano, and sometimes bison even cause traffic jams. Occasionally, water shoots up really high into the air from the geysers.

Limestone is a type of rock made mostly of a mineral called calcite, which is like a crystal made of Calcium Carbonate (CaCO3). Sometimes, limestone also has silica, which can be like Jasper or Flint, and bits of clay, silt, and sand mixed in. The calcite in limestone mostly comes from things like stalagmites and stalactites in caves. Another way it gets calcite is from the shells of sea creatures and corals. Fact About Limestone.

Largest Wingspan Bird There are around 10,000 types of birds, but which ones are the biggest? It’s tricky because we can measure size in different ways: length, weight, or how much space they take up in the bath.