Examlex
Comets are not actually members of the solar system, but have been captured by the Sun.
Water
A ubiquitous chemical substance with the formula H2O, essential for all known forms of life and used as a solvent among its numerous roles.
Electrode
A conductor through which electricity enters or leaves an object, substance, or region, commonly used in batteries and electrolysis.
Voltage
The electrical potential difference between two points in a circuit, measured in volts.
Anode
The positively charged electrode by which the electrons leave a device.
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