Tell thechildren that when they wash their hands at a sink theywill need to turn off the water faucet without havingdirect contact with the handle. T o do this they will use aclean, dry paper towel to cover the handle beforetouching it (this prevents the transfer of germs from thehandle back to the hands). 4 Before starting the next activity, get cooking oil(enough for each child to have a dime-sizedamount), and a shakable container of cinnamon spice.
A: Copper is classified as a metal on the periodic table and is therefore not classified according to family in the manner that plants and animals are. Copper is red-colored. It is malleable, ductile, and a good conductor of heat and electricity.
The oxidation number in most copper compounds is Cu(II), old name cupric, but there are many important Cu(I) compounds (cuprous) as well. 1  Name: copper. 2  Symbol: Cu. 3  Atomic number: 29. 4  Relative atomic mass (Ar): 63.546 (3) [see note r] 5  Standard state: solid at 298 K. 6  Colour: copper, metallic. 7  Classification: Metallic.