In a monarch butterfly colony there can be 15,000 butterflies clinging to a single branch.

The butterflies are so heavy they can bend the tree's branches!

Question:

• If the typical monarch weighs 500 mg, how much would a branch loaded with 15,000 butterflies weigh? (Give your answer in kilograms and in pounds.)
• Also name another object that weighs the same amount, for comparison.

Answer:

• Try the questions yourself! Then see how others answered.