metal / remote control car / Online video / pure electromagnetic energy / inert gas / allowed Internet sources / high-energy ionizing radiation / thin metal sheet / high-energy particles / energy / /
Organization
Atomic Mass Unit / U.S. Environmental Protection Agency / Environmental Protection Agency / /
Person
Rutherford-Bohr Theory / Niels Bohr / Ernest Rutherford / Atom Atoms / /
Position
Teacher / scientist / The Smallest Matter Teacher / /