The black boxes in commercial aircrafts, are in fact orange (so does anybody know why it is called a black box?)
Snakes hear through their jaws.
Snails can sleep for three years without eating
You use more calories eating celery then there is in the celery itself
The earth weights abut 6,588,000,000,000 million tons. (how did they measure this?)
Teeth are the only parts of the human body that can't repair themselves
Four is the only number in the English language that has the same number of letters in its name as its meaning. (ask the class the question what makes the word FOUR so special?)
10,000 hours of tape are recorded during any one series of Big Brother
The Eiffel Tower in Paris has 2,500,000 rivets in it. (ask your learners to guess first)
A group of frogs is called an army
A group of crows is called a murder
The average person walks the equivalent of twice around world in their lifetime.
Food can only be tasted if it is mixed with saliva
More people are alive today,than have ever died
The elephant is the only animal with four knees
No words in the English language rhyme with month, orange, silver or purple. (Give your students the challenge to come up with rhyming words first before you tell them that apperantly there are none but this can be proven wrong of course)
The Cambodian alphabet is the largest. It has 74 letters
