Petroleum Engineers search around the world for oil and natural gas, then determine the safest and most efficient way to get it to the surface. They use technology and their understanding of the earth’s structure to gain access to new energy sources. This career requires a Bachelor’s Degree. To prepare for this career you might identify different types of rocks and minerals, learn how to geocache--using a compass or GPS receiver to locate objects -- or use your math and problem-solving skills to identify and solve real-world problems. Potential salary: $130,000/year.