Mechanical engineers design and build machines that are used to make everything from jet airplanes to toys to synthetic fabrics. They may create a machine to transport molten lead, using their scientific expertise to avoid melting, spilling, or over-heating.

Mechanical engineers are involved in designing new machines and products, and spend a lot of time on computers, using software for modelling. They also meet with managers and other engineers to discuss the expectations of a new machine (for example, how fast it needs to run).

Workplace: Mechanical engineers are employed by consulting firms, utilities, manufacturers, processing and transportation industries. Some are also self-employed. Most mechanical engineers work 45 to 50 hours a week, and those who work in the manufacturing industry may tour factory floors on a regular basis to inspect machines and direct repairs.

Useful high school subjects: Algebra & Geometry; Calculus; Physics; Computers

Post-secondary education: A bachelor’s degree in mechanical engineering is required to work in this field, although a degree in a closely related discipline such as electrical engineering may also be acceptable. During university studies, students are introduced to relevant subjects such as thermodynamics, fluid mechanics, or materials science, and can choose an area that interests them most.

Salary: Those with a B.A. in mechanical engineering and about 2 years of experience earn an average of $40,000 a year. With an M.A., this figure rises to $44,000. After about 5 years of experience, engineers with a B.A. are earning an average of $45,500, while those with an M.A. earn $52,000.