energy and matter

3. the natural agent that stimulates sight and makes things visible.
6. relating to the interrelation of electric currents or fields and magnetic fields.
8. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy
9. relating to chemistry, or the interactions of substances as studied in chemistry.
10. vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
11. power derived from the utilization of physical or chemical resources, especially to provide
12. example of electrical energy

1. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
2. example of electromagnetic energy
4. example of thermal energy
5. example of chemical energy
7. a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.