Very small raindrops look like a sphere; bigger ones look like the top of a hamburger bun.
Antarctica is the biggest desert on Earth. A desert is an area which receives less than 10 inches (250 millimeters) of rain per year, regardless of temperature.
Historically, people in Europe used frogs to predict rain or bad weather. The European Tree Frog is an example of a primitive living barometer. The frog starts croaking when the air pressure changes.
In 1981, the people of Naphlion, Greece were stunned at the sight of frogs falling from the sky. The tiny critters were carried by strong winds all the way from North Africa, more than 1,000 miles away.
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