VNY_SciJrnl_interior
9/14/12
4069
9:59 AM
Page 72
Min Jae Kim and D. Shah (teacher)
Portola Highly Gifted Magnet Center 18720 Linnet St. Tarzana, CA 91356
Does a Snail Go Uphill, Downhill or in Water Faster in 5 Minutes? This study examined how fast a snail goes in different surfaces. Put the snail uphill, downhill or in water and record how far it went in each minute. Repeat this three times. As a result for the experiment it went fastest uphill and slowest downhill. SSS
4070
Jack Wilding and D. Shah (teacher)
Portola Highly Gifted Magnet Center 18720 Linnet St. Tarzana, CA 91356
Effects of Music on Heart Rate This project examined the question of whether certain types of music could increase or decrease a subject’s heart rate. The subject would be played different music in an attempt to change his/her heart rate. Three songs were played, after which a heart rate was taken from the subject. The experiment was repeated three times on each subject. The results suggested that music randomly affected subjects’ heart rates. The music altered all the subjects personally. SSS
4071
Solomon Kim and D. Shah (teacher)
Portola Highly Gifted Magnet Center 18720 Linnet St. Tarzana, CA 91356
Do Plants Grow Faster Under Sunlight or Artificial Light? This study examined the stages of plant growth under sunlight and under a fluorescent light in a four-week period. Two groups of plants were each placed in the appropriate places for the experiment with similar humidity and temperature to each other. Both groups were non-tampered and watered appropriately according to the temperature. Plants were watered about 1/4 of a cup each day during summer, while during winter, plants were watered using a spray bottle. The end result indicates that fluorescent light plays a better role in helping plants grow stronger and healthier. SSS
4072
Johnathan Yih and D. Shah (teacher)
Portola Highly Gifted Magnet Center 18720 Linnet St. Tarzana, CA 91356
Which Bridge Can Support the Most Weight? This study compared the strength of two bridges, the truss and beam bridges. The bridges were constructed out of Popsicle sticks, hot glue and rectangular blocks of wood. Weights were hung on the bridges until the bridges collapsed. The weight before the bridges collapsed and the weight that caused them to collapse were recorded. Weights were at an increment of about 2.26 kg (5 lbs). Each experiment was repeated three times. The peak the beam bridge could hold before collapsing was about 6.80 kg (15 lbs). The peak the truss bridge could hold before collapsing was about 13.6 kg (30 lbs). The results suggest that the truss bridge is the stronger out of the two bridges, truss and beam. SSS
72
Van Nuys Airport & California State University, Northridge