What is Science?
Science builds and organizes knowledge in the form of testable explanations and predictions about the universe. In other words, AWESOME.
What is Technology?
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function, and sometimes create weapons… which can be bad. Very bad. Things go explody.
What is a Techie?
Someone who is highly proficient and enthusiastic about some technical field (especially computing). Often refered to as nerds, but completely unwarranted, and they can most likely hack into your bank accounts, so be nice to them.