To make the sea floor we had to make playdoh and recreate a section on a map that we where given. After we did that we put graph paper over the box we had and made a graph on the paper. When we where done we had to take sticks and punch through the paper in cretin spots on the graph. We put the stick down in till we felt that it hit some thing then we recorded how far it went down. We put the recordings on a paper and the point of all this was to see if we could know what it look like with out seeing it.