3.  The classification of matter as a solid, liquid, or gas.

4.  Appearances of an object including mass, volume, magnetism, state of matter, density, solubility, the ability to insulate or conduct heat or electricity.

16.  Not attracted to a magnet because it does not contain iron.

17. To keep away

20. The amount of space a liquid fills measured by a graduated cylinder or beaker.

23. Energy that causes a change in temperature between materials.

24. Energy produced by the movement of electrons.