2005 Category Winners in
Earth Sciences/ Planetary Sciences/ Physical Environments

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First Place: S0604

Daly, Terik Grade 10, Santa Clara County
The Derivation and Interpretation of Geochemical Ratios Generated by Meteoritic Impact
Advisor: Dr. Peter Schultz
School: Oak Grove High School, San Jose

Second Place: S0616

Yanamadala, Swati Grade 9, Los Angeles County
Changes in Densities of Fecal Indicator Bacteria (FIB) over Differing Tidal Flows in the Ballona Wetlands, Los Angeles
Advisor: Dr. John Dorsey
School: Chadwick School, Palos Verdes

Third Place: S0613

Singhal, Maia Grade 9, San Mateo County
Ripped Away: How Does Dredging Affect Rip Currents?
Advisor: Ms. Tina Doss
School: Carlmont High School, Belmont

Honorable Mention: S0615

Spevack, Samuel C. Grade 9, San Diego County
Analysis of a Potential Impact Crater in the Sacramento Basin
Advisor: Mrs. Gretchen Taylor
School: Valhalla High School, El Cajon