Examlex
In their relationships with each other, boys and girls in middle childhood often imitate adults.
Thermodynamics
The branch of physics that deals with the relationships between heat and other forms of energy, and the laws governing the conversion of heat into work.
Energy
The capacity to do work or produce change, existing in various forms such as kinetic, potential, thermal, and chemical energy.
Parts Per Trillion
A unit of measurement used to denote extremely small concentrations of a substance in another, equivalent to one part in 10^12 parts.
Nuclear Change
Alterations at the atomic nucleus level, including nuclear reactions such as fission, fusion, and radioactive decay, releasing significant amounts of energy.
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