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Every year Broadcom MASTERS awards the Lemelson Award for
Invention to a middle school student. MASTERS, which stands
for Math, Applied Science, Technology and Engineering for Rising
Stars, is an event that recognizes middle school students for their
scientific achievements. Nathan Deng won the award by creating an
experiment that tests how well hot water and soap clean dishes. He
wants other teams to conduct the same experiment.
Nathan Deng was able to construct an experiment that determined
why hot water and soap are used to clean dishes. He kept the
experiment simple by only testing the surface tension of water. The
surface tension of water is the effect that results when molecules
bond to each other on the surface of the liquid. Nathan found that
hot water and soap reduce surface tension.
Nathan Deng's use of simple experimentation to answer basic
questions about dish washing won him the Lemelson Award for
Invention. Curious about why hot water and soap were needed to
clean dishes, Nathan set up an experiment to test surface tension.
Nathan tested drops of water at different temperatures as well as
the use of a soap ingredient to determine their effects on surface
tension. He found that soap and hot water are most effective.
Inspiration for science projects can come from everyday life. For
this reason, anyone can complete a science project. Nathan Deng
investigated the way soap and hot water affect the cleanliness of
dishes. There are often tiny cracks in dishes that are difficult to
reach when washing dishes. Surface tension keeps water out of
these spaces. Nathan's experiment showed that using soap and hot
water would be effective.