Step+3

To find how many cups of unpopped-popcorn are in one cubic foot: >
 * 1 cup of unpopped-popcrorn= 5 quarts of popped popcorn (Students found this information on the bag of kernels).
 * There are 30 quarts in 1 cubic foot
 * 30 quarts/ 5 quarts= 6 cups
 * Therefore there are 6 cups of unpopped-popcorn in 1 cubic foot