1. The element commonly used as a fuel in commercial nuclear power plants is . 2. The is the substance that slows down the neutrons in a nuclear reactor so they are at the proper speed to break apart nuclei and sustain nuclear fission.
3. An uncontrolled, self-sustaining nuclear fission chain reaction is an example of feedback.
4. Steam produced from the heat generated by nuclear fission is used to turn the blades of the in a nuclear power plant.
5. A is composed of metallic alloys, and slows fission in a nuclear reactor by absorbing neutrons.