Potato Gun

Today we did an experiment using potatoes. It was called a potato gun. The materials we used was plastic straws, potato's and skewers. The key was to make it air tight. To work the potato gun you had to press the straw in the potato. You had to fill the straw with potato on both ends. Then you had to get the skewer and press the potato from one end to the other. The air pressure would push the potato from the other side and it would go flying out. Unfortunately mine didn't work along with a lot of others.😕