1 Raw iron is found in earthâs crust, as an ore. 2  Iron ore mostly found as Fe 2 O 3 (the form of iron oxide found as the mineral hematite).
A US quarter struck in 1964 or 1965 (dated 1965) and later weighs about 5.67 grams. A US quarter struck between 1930 and 1964 weighed 6.25 grams. This would make a roll of qâ¦uarters, or 40 quarters, weigh between 226.8 grams and 250 grams. This is about half a pound for the lower figure and almost 1 ounce more for the higher figure.
After counting how many quarters fit into each container, then fill the container with water. Then measure the water as accurately as you can. If you have a scale in grams that would be best I think. So, 1cm^3 = 1mL and for water each mL weighs about 1.0 grams.There are 3785.4 mLs in a gallon.hink about 10 rolls of quarters you'd get at a bank. If you dropped 10 rolls of quarters into a 5 gallon water bottle would you even come close to filling even 5% of it. Someone previously guessed 356,000 quarters ... or about $ 89,000.