Balancing Robots

Our challenge in science club was to make a card robot balance on the tip of a finger.  We were given 2 robots to cut out, 2 1p coins and blue tack.  We needed to place the coins using the blue tack between the robots and make him balance.  It was very tricky but after a number of attempts we got there.  We managed to balance the robot on lots of different things e.g. scissors, pencil, our noses and even our hair! We took the robots home and tried it out on our mums and dads and they found it difficult too!