Your body is between 60% and 70% water. This changes at different times of your life: a human foetus is around 95% water for the first months, getting to 77% water at birth. In a 70kg person, there are 42 litres of water.
Hot water freezes faster than cold water. This is known as the Mpemba Effect, and no-one knows why it happens.
Read more on the next page...
Page 3 of 9
ADVERTISEMENT