Spatter Spatter Everywhere

Overview

Objectives/Goals To see when we hit a small amount of blood with an object, if the amount of force will effect the pattern of the resulting bloodstains. Methods/Materials We mixed glycerin, milk, and red food dye together to make our fake blood. Next we placed the blood on the block of wood and dropped the hammer and the baseball bat at various hights. Then we took the 4 targets off the boards and put them on the garage to dry. Then we counted the dots and interpreted our data. Results The hammer's spatter pattern ended up with the majority of the dots on the front targets (B and C). The baseball bat's spatter pattern ended up with the majority of the dots on the side targets (A and D). We think that the shape of the object determined the pattern of the resulting bloodstains. With a greater amount of force used, we observed an increase in the number of blood dots. We also observed an increase in the number of blood dots with small diameters Conclusions/Discussion When we were comparing our data, we found that our hypothesis partly correct. The increase in force did result in an increase in the number of blood dots and blood dots with small diameters. It did not, however, change the pattern of the blood dots.

Competition history

• CSEF 2003 Aerodynamics/ Hydrodynamics · Entry J0106

Resources

• CSEF project summary ↗

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