1991 Category Winners in
Earth Sciences

First Place: J0611

Jacobsen, Tim A. Grade 8, Fresno County
Colloidal Suspended Earth Materials in Preventing Radiation
Advisor: Mr. Carl Gong
School: Lone Star Elementary School, Fresno

Second Place: J0614

Leetch, Lisa A. Grade 8, Fresno County
The Effect of Soil Particle Size and the Density of Objects as Factors in Soil Liquefaction
Advisor: Mr. Marvin Harms
School: Lone Star Elementary School, Fresno

Third Place: J0607

Foote, Cyndee Grade 7, San Benito County
Why Does Wet Sand Dry When Pressure is Applied?
Advisor: Mr. Wayne Funk
School: San Juan Elementary School, San Juan Bautista

Honorable Mention: J0603

Campanella, Gian C. Grade 8, Santa Barbara County
Rocks of the Sespe and Coldwater
Advisor: Ms. Valerie Thor
School: Marymount Academy, Santa Barbara