Deep inside Earth, between the molten iron core and the thin crust at the surface, there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt. Extremely high temperature and pressure cause the rock to melt and become liquid rock or magma.
The scientific definition of work is the transfer of energy from one object to another, especially in order to make the second object move in a certain direction. Work is equaâ¦l to the amount of force multiplied by the distance over which it is applied.
In general terms a scientist is a person who studies nature and makes theories and discoveries as to how nature works using the scientific method. An inventor takes the laws and theories of science and puts them to practical use by humans.