Sheet # 6/Halloween - Bats

Name: _____________________ Date_____________

1) Bats can eat half their weight in insects each night. If the bat weighs 16 grams and a moth weighs 0.4 grams, how many moths will the bat eat before it is half full?








2) In Problem 1, if the bat ate only moths, how many moths could it eat from May to September (150 days)?









3) In Problem 2, how many could a colony of 1,000 bats eat?







4) One kind of bat that lives all over the U.S. is the Red Bat. They are only 3 inches long and look like dry leaves hanging in a tree. They fly 13 miles/hour. If a group of Red Bats are flying to Florida from Chicago, how long would it take them if it was 850 miles.











Answers for sheet # 6

1) 8 grams divided by 0.4 grams = 20 moths/nights

2) 15 days x 20 moths/night = 3000 moths

3) 1000 x 3000 = 3,000,000 (3 million moths)

4) about 65 hours