Abstracts
5049
How Can the Temperature of Dew Point Be Determined? Nick Valdivia, Jonathan Mendieti and A. Antoniou (teacher) Robert Frost Middle School 12314 Bradford Pl. Granada Hills, CA 91344
The purpose of this experiment was to determine the dew point temperature of air and to see if the dew point would be higher indoors or outdoors. According to our research, dew point is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. The warmer the air temperature, the closest the dew point will be to that temperature. We conducted an experiment inside the house and outside, both in the sun and in the shade. We observed that outside in the shade had the lowest dew point and in the sun was the highest. Dew point is when beads of water form on objects like grass or on cars in the morning, but in this case we stirred ice in a coffee can until beads of water formed on the outside of the can. When that happens it means that we have found the dew point. We proved our hypothesis to be correct when the dew point outside in the shade was the lowest of all. 5050
Which Liquid Will Make a Penny, Nail and a Paper Clip Rust the Fastest? Gohar Tatevossian, Angela Topchyan and A. Antoniou (teacher) Robert Frost Middle School 12314 Bradford Pl. Granada Hills, CA 91344
The purpose of our experiment was to find out which liquid would make a penny, nail and a paper clip rust the fastest. Our hypothesis was that the vinegar would make them rust the fastest. We used nine cups. Three cups were each filled with 1/2 cup of water. Another three cups were filled with 1/2 cup of vinegar and the last three cups were filled with 1/2 cup of vegetable oil. All three objects were placed in three cups, one in water, one in vegetable oil and another one in vinegar. We observed our experiment for 30 days and found out that the nail rusted in the water on day one, the penny on day two and the paper clip on day 27. The objects rusted in vinegar between days 27 and 30, and in the oil they did not rust at all. Our hypothesis was incorrect. Water rusts metal objects the fastest and oil prevents metal from rusting.
New Journal of Student Research Abstracts 2011
51