Because the pencil is made of wood and you only changed the size and shape of the wood or pencil and did not change what the wood is made of the substance. + 25 others found this useful. Ben Miller. Edit.
There are 97 calories in 1 cup of grapefruit. A one cup serving of grapefruit contains 16 grams of sugar. Half a grapefruit has 52 calories, 8 grams of sugar. It also has 28% of the recommended daily dose of Vitamin A plus 64% of your recommended Vitamin C. Grapefruit is among a handful of fruits that is one the left side of the PEERtrainer Cheat System.
One-half of a large grapefruit contains 53 calories, according to the U.S. Department of Agriculture National Nutrient Database. The U.S. Food and Drug Administration notes that the average diet is based on 2,000 calories per day and warns that eating too many calories may lead to obesity.