I need help with copper

[1cent]

Hello all I`m new to this.
My son is doing a science project on copper he wants to know how much copper by weight is in a
1 cent 5 cent 10 cent 25 cent 50 cent and the current 1 dollar
then if that wernt enough...
how many of each were made last year (2008) at all mints
so he can find the total copper out put by the mint for the year.
I know this is a lot to ask..but can someone direct me to where I can find this out?

[wavysteps]

Okay,

pre 1982 Lincoln cents weigh 3.11 grams and have 95 % copper
post 1982 Lincoln cents weigh 2.5 grams and have 0.8 % copper

Jefferson Nickels have 75 % copper and weigh 5 grams
War nickels 1942 to 1945 have 56 % copper

Roosevelt Dimes pre 1964 weigh 2.5 grams with 10 % copper
post 1964 weigh 2.27 grams and have 75 % copper

Washington quarters weigh 6.25 grams and have 10 5 copper
post 1964 weigh 5.67 grams and have 75 % copper

Kennedy half's in 1964 weeing 12.5 grams and had 10 % copper
from 1965 to 1970 they weighed 11.5 grams and had 60 % copper
from 1976 to the present they weighed 11.34 grams and have 75 % copper.

Ike dollars weighed in at 22.68 grams from 1971 to 1978 and had 75 % copper
Susann B Anthony dollars 1979 - 1999 weighed 8.1 grams and were 75 % copper.
Sacagawea dollars weighed 8.1 grams and had 77 % copper.
The presidential dollars are the same as the Sacagawea dollars.

BJ Neff

[1cent]

thanks

thank you again.we both thank you for your time
john and alex