2. Nebraska produces an estimated 250 million pounds of popcorn per year—more than any other state. This is equivalent to a quarter of all the popcorn the United States produces every year.

3. Popcorn is the official snack of Illinois. Since 1958, there has been an annual “Popcorn Day.”

Both the American Dietetic Association and the American Diabetes Association say that popcorn can be exchanged for bread for people on weight control diets.5. Unpopped popcorn should not be stored in the refrigerator. The refrigerator will dry out the moisture in the kernels. Without the moisture, popcorn will not pop. The ideal place to store popcorn is in a cool, dry cupboard.

6. Popcorn kernels can pop up to 3 feet in the air.

7. Popcorn has more protein than any other cereal grain. It also has more iron than eggs or roast beef. It has more fiber than pretzels or potato chips.

8. The world’s largest popcorn ball was 12 feet in diameter and weighed 5,000 pounds. It required 2,000 pounds of corn, 40,000 pounds of sugar, 280 gallons of corn syrup, and 400 gallons of water.

9. Two tablespoons of unpopped kernels produce a quart of popcorn for about 25 cents.

10. There are about 1,600 popcorn kernels in 1 cup（美国标准量杯）.