Easter Egg Science

The Science Club carefully cracked open eggs in half and removed the yolk and white (plenty of scrambled egg mixture for the weekend!).  We then very gently wiped the inside of the shells dry and secured a marble with blue tac to the bottom of the large half.  Next we taped the two halves together to make a whole empty egg - but with a twist!  With the heavy marble inside, the egg's centre of gravity was changed.  Now, whenever the egg was pushed over, it rolled around to right itself, as the heaviest part with the marble sat on the desk.