Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Forest fires move faster uphill than downhill.
52
Even Antarctica has an area code. It's 672.
58
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The state of Florida is bigger than England!
74
There are more than 50,000 earthquakes throughout the world every year!
47
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63