A hippo's sweat is a reddish color and helps protect its skin from the sun.

Flamingos get their pink color from the food they eat.

The Sun is a star, and it's the closest star to Earth.

You are a tiny bit taller in the morning than at night.

Rain has a smell! The earthy scent after rain is called petrichor.

Lightning strikes somewhere on Earth about 40 to 100 times every second.

People in ancient Egypt made paper from a plant called papyrus.