EARTH SCIENCE http://www.juliantrubin.com/branchesofsciencefair.html Earthquakes - Determine how and to what extent site effects (soil type and distance) can account for peak ground acceleration (PGA). R - Learn if different types of soil or sand decrease the magnitude of compression waves. R - Estimate the diameter of the Earth's core by measuring seismic waves around the globe. R - Locate the epicenters of worldwide earthquakes using archived seismometer. R - Locate the epicenters of Northern California earthquakes using archived seismometer data. R - Seismic and Petrographic Analyses of the Victoria Island Structure R - Shear Wave Velocity Determined by Refraction Microtremor Surveys to Assess Earthquake Risk R - Study the topography of Mentawai Islands, create a map of clear uplifted terraces and by mapping the distribution of the terraces identify the uplift caused by previous earthquakes. - Test several methods of landslide prevention to determine which is the most effective. R - Build Your Own Seismometer R - Demonstrate seismology - build an earthquake machine R - Simulation of terrestrial impact craters R - Fossil source material movement due to tectonic vibrations R - Make a Brick and Sandpaper Earthquake Model R - Make a Shake Table R R R Geology. - How soil properties changes with depth, and compare soil core profiles collected from multiple sites. R - The Origins of Aplite Dikes within the Half Dome Granodiorite Using Initial Strontium and Lead Ratios R - Build a model illustrating sea-floor spreading and subduction. R - Simulation of terrestrial impact craters R - Fossil source material movement due to tectonic vibrations R - Slip-Rate Determination of the Great Kavir Fault in Northeast Iran R - Determine the dominant soil type in your neighbourhood. R Meteorology - How Does the Tilt of Earth's Axis Affect the Seasons? R - Test whether errors in GPS (global positioning system) signals are correlated with geomagnetic storm activity in the ionosphere. R - Can we predict future temperatures using the number of sunspots? R - Weather Anomalies and Natural Disasters S - Calculate relative humidity R - Is it possible to forecast the weather by using simple techniques such as observing wind patterns, cloud formations and using simple measuring devices? R Hydrogeology - Build a model illustrating sea-floor spreading and subduction. R - Measure the amount of water stored in the pore space of a soil sample Landslides: - Test several methods of landslide prevention to determine which is the most effective. R - Investigate how soil type and the degree of saturation of the soil affects slope stability. R - Test several methods of landslide prevention to determine which is the most effective Oceanography: - Understanding Ocean Acidification R - The Effect of Surface Area and Volume on the Temperature and pH in a Tide Pool R - Determine what influences the movement of harbor porpoises. R - The Effect of Latitude on Ocean Salinity in the Antarctic Waters R - Determine whether temperature affects the salinity and pH level of ocean water. R - Tests the effect of depth on ocean bottom composition. R - Find the best jetty design that would keep sand on beaches. R - Tests to see if extending the beach by adding sand to it affects rip currents. R - Build a model illustrating sea-floor spreading and subduction Earth’s Magnetism: - Identify grazing animals using Google Earth and determine if they have aligned themselves with Earth's magnetic field. Erosion: - The Effect of Perennial Ryegrass (Lolium perenne) Presence and Growth Stage on the Erodibility of a Sandy Clay Soil R - Determine whether the beaches in the Malibu area are eroding at an unnatural rate due to human development. R - What Barrier to Wind Erosion Is Most Effective? R - Determine which soil types are most likely to erode under severe weather conditions? R Natural Disasters: - Research the theory that an Asteroid Killed the Dinosaurs R R - How to predict the tide accurately. R R - Determine if humans can sense infrawaves and if it could be used as an early warnings for natural disasters. R - Weather Anomalies and Natural Disasters S - Simulation of terrestrial impact craters R - Fossil source material movement due to tectonic vibrations R Wind Energy: - Describe alternative energy sources and outline advantages and disadvantages of any source. R R S - Increase wind velocity by creating a hole in an airfoil S - At what time of day is there enough wind to make electricity where you live? (look at the bottom of the page) R - Will forcing air (wind) through a smaller space, through an hour-glass shaped cover around the turbine, more power would be generated at the same wind speed. R Water Energy: - Extracting Energy From Phase Shift in Water S - Test whether a hydrogen peroxide powered Tesla turbine has more energy than a battery of the same weight. R - The Effect of the Density of Water on the Wattage Output of an Hydroelectric Generator R - Describe alternative energy sources and outline advantages and disadvantages of any source. R R S - Build a Kelvin Water Dropper. R - Which type of natural energy source is more efficient - a hydroelectric dam or a wind turbine. Wood Energy: - The effect of different types of woods on the energy released in a combustion reaction Geothermal Energy: - Can Geothermal Power Compete with Coal on Price? Green Building Science: - Which new roofing material, proposed to meet the requirements of recent California legislation, reflects the most light and reaches the lowest maximum temperature? Renewable Energy Cost: - Which type of natural energy source is more efficient - a hydroelectric dam or a wind turbine. R - Investigate whether the heat from a compost bin or pile can be used to efficiently and effectively heat water. R - Test Photovoltaic Cells vs. Solar Thermal Energy (Stirling Engines) Efficiency R R R - The Effect of Variable Microorganisms and pH on the Efficiency of a Microbial Fuel Cell (MFC) R - Determine whether ethanol is a more efficient and clean burning fuel than gasoline. R R - Determine how efficient certain biofuels are in comparison to diesel fuel and whether using new or used oil in the making of the biofuels alters their efficiency. R - Produce Cellobiose Dehydrogenase from fungi Trametes versicolor in a exogenous expression system, either in E.coli or in transgenic tobacco plants. The recombinant CDH obtained from this project could be used in a cellulase cocktails to more efficiently degrade lignocellulose materials. S - Determine how efficient certain biofuels are in comparison to diesel fuel and whether using new or used oil in the making of the biofuels alters their efficiency. R - Discover the most efficient crop to use in the creation of biodiesel. R R - The Effect of Temperature on PEM Hydrogen Fuel Cell Efficiency R - An efficient, low cost underwater glider that recycles energy by using a fuel cell as its method of propulsion R - Compare biofuels (ethanol) with bioelectricity (burned biomass) efficiency (more energy from the same amount of land) R - Can Geothermal Power Compete with Coal on Price? Solar Cells: - Test Photovoltaic Cells vs. Solar Thermal Energy (Stirling Engines) Efficiency R R R - Can Solar Energy Systems Pay for Themselves with Utility Bill Savings? R - Determine if dye-sensitized solar cells that implement berry pigments absorb more solar energy than dye-sensitized solar cells that implement leaf pigments. R - Improve photovolatics by the construction of a modified Cassegrain reflector. R - Investigate Grätzel photovoltaic cells. R R - A solar panel will output different levels of power depending on the color and wavelength of the incoming light. R R R R R - An innovative passive high-precision photovoltaic panel tracking system S - Is solar energy a non-polluting way of producing electricity? R - How many solar cells would I need in order to provide all of the electricity that my house needs? R R R R R - Design a replacement electrolyte for the potassium iodide/iodine electrolyte in Grätzel type dye-sensitized photovoltaic cells using simpler materials R R - Build a solar bicycle R - An Experimental Study of a Fluorescent Solar Concentrator R - Describe alternative energy sources and outline advantages and disadvantages of any source