If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Check your map! Virginia extends farther west than West Virginia.
67
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
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
More than 25% of the world's forests are in Siberia.
51