10 each!!!

5. - The amount of a particular substance in a given volume of solution or mixture.
7. - A measure of the average kinetic energy of the particles in a substance.
9. - The rate at which an object moves.
10. - A disturbance that travels through space or matter, accompanied by the transfer of energy.
11. - The bending of light as it passes through a medium of different density.
12. Rod - A metal rod on a building used to divert lightning strikes harmlessly into the ground.
14. - The bouncing back of light or sound waves from a surface.
17. - Emitting or transmitting energy, especially light or heat, in the form of radiation.
20. - Relating to the interplay of electric and magnetic fields.

1. - Emitting or reflecting light.
2. - is the distance and direction of an object's change in position from its initial point to its final point.
3. - The transfer of heat by the movement of a fluid (liquid or gas).
4. - A unit of energy, work, or heat.
6. - The energy transferred from one body to another as a result of a difference in temperature.
8. - A chemical reaction that absorbs energy in the form of heat or light.
13. - The process of converting an atom or molecule into an ion by adding or removing one or more electrons.
15. - A chemical reaction that releases energy in the form of heat or light.
16. - The transfer of heat or electricity through a substance by direct contact.
18. - Electromagnetic radiation that is visible to the human eye.
19. - The speed and direction of an object's motion.