apple is made of 25% air, that is why they float. apples, onions, and potatoes all have the same taste? Try the test: Pinch your nose and take a bite out of each. avocado has the highest protein and oil content of all fruits, but most of this is the healthier unsaturated type. carrots were originally purple in colour, changing in the 17<SUP>th</SUP> Century to orange with newer varieties. celery requires more calories to eat and digest than it contains. cereal as a word is derived from the name of the Roman goddess Ceres, protector of crops. champagne contains 49 million bubbles in a bottle and has a pressure 3 times that of a car tyre. cherries are a member of the rose family. chewing gum may keep you slim by boosting the metabolic rate by about 20%. chewing gum stimulates signals in the learning center of the brain and thus help save memory as you age. chicken is one of the few things that we eat before it's born and after it's dead. chili heat is measured in Scoville units, named after the pharmacist Thomas Scoville.