Balsa wood is classified as a hard wood!
41
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Iron weighs more after it rusts.
16
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
68
Nylon is made from coal and petroleum.
42
Out of all the senses, smell is most closely linked to memory.
146