Science

2. a material or object that produces a magnetic field.
4. A device used to determine geographical direction
6. A muscle, nerve or centre that effects or produces movement
7. a branch of Physics, that deals with the electromagnetic force that occurs between electrically charged particles.
8. the region around a magnetic material or a moving electric charge within which the force of magnetism acts.
9. The flow of eletrical power or charge
10. a reddish, extremely ductile metal of Group 11 (Ib) of the periodic table that is an unusually good conductor of electricity and heat
12. A chemical element
13. a device that stores chemical energy, and converts it to electricity.
17. a flexible metallic conductor, especially one made of copper, usually insulated, and used to carry electric current in a circuit.
18. a device that converts mechanical energy (itself derived from coal, oil, natural gas, wind, water, nuclear reactions or other sources) into electrical energy.
19. the direction along Earth's surface towards the place where the imaginary rotational axis of the Earth intersects the surface of the Earth
20. an infolding of skin that occurs at the terminal end of each digit

1. chemical element
3. a unit of measure of the rate of electron flow or current in an electrical conductor.
5. the direction that points directly towards the geographic North Pole
6. an important class of micro-/nanomaterials that display magnetic properties when subjected to external magnetic fields.
8. the direction that a compass needle points to as it aligns with the Earth's magnetic field
11. The direction that points directly towards the geographic south pole
14. The potential difference between two places
15. a flow of electrical charge carriers, usually electrons or electron-deficient atoms
16. any substance that has a defined composition