The Angel Falls in Venezuela is the world's highest waterfall (979 meters / 3212 ft.), three times the size of the Eiffel Tower.
Crickets hear through their knees.
Global Positioning System (GPS) is the only system today that can show your exact position on the Earth anytime, in any weather, no matter where you are!
Shanghai, China is the largest city by population (13.3 million) in the world.
Originally, 6 million square miles of tropical rainforest existed worldwide. But as a result of deforestation, only 2.6 million square miles remain.
The air located around a lightning bolt is heated to around 30,000 degrees Celsius. This is 5 times hotter than the surface of the sun.
In the United States, more tomatoes are consumed than any other single fruit or vegetable!
The flower with the world's largest bloom is the Rafflesia arnoldii. This rare flower is found in the rainforests of Indonesia. It can grow to be 3 feet across and weigh up to 15 pounds.
The highest temperature ever recorded in the United States was 134 degrees F at Greenland Ranch in Death Valley, California.
Earth is the only planet on which water can exist in liquid form on the surface.