The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
A cubic yard of air weighs about 2 pounds at sea level.
31
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
Pumice is the only rock that floats on water.
14