The goal of the lad was to make a man float with his face out of the water. The man will be dropped in the tank and the majority of his head must be out of the water facing up wards. The materials that I needed 1 rubber band and 1 piece of foam insulation.

       My design was succesful because I wrapped my person with a foam insulation and a rubber band like a life vest. The person weighed 3 grams and the life vest weighed 11 grams all together is 14 grams. The first trial his head was almost 2cm under the water. Then the seconed trial was perfect.

       To make my design more succseful I clould of used only one piece of of foam insulation and maybe less rubber band.

       I think that the life jacket will cause the density of the man to change because the is more air in the foam insulation

Some examples of simple machines are levers, wedge, pulley, wheel and axle.

I love to play softball. I had 15 stitches when I was in 6th grade. I am the youngest, my sister is 16 and my brother is 20. I have two dogs, one hamster, and we are about to get three chickens. My birthday is the same as my cousins but she is two years younger than me. I wear glasses.  I am half Greek.