More than 25% of the world's forests are in Siberia.
51
The average ice berg weighs 20,000,000 tons!
54
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49