4.5 pounds of sunlight strike the Earth each day.
27
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Scientists aren't sure what color dinosaurs were.
312
Hot water can freeze faster than cold water.
181
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42