Awesome Aggregations

(1 review)


Monarchs must travel hundreds of miles during their migration to Mexico every year from North America and are bound to run into bad cold weather along the way. It’s hypothesized that Monarch butterflies aggregate together to prevent freezing. This article includes an experiment to determine how aggregating helps Monarchs stay dry and alive during cold temperatures.

Additional information

Grade Level

NGSS STEM Practices

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Resource Type

Standards Present


Media Format

PDF Download

Creation Date

Before 2010

Reviews (1)

1 review for Awesome Aggregations

  1. LessonHiveAdmin

    This lesson is a little old, but still a really nice way of testing a hypothesis about monarch aggregations! We especially like the clear instructions for both students and teachers about how to quantify the effects of monarchs perching together, as well as graphing. An assessment rubric is included.

    A packet of goldenrod paper costs about $20, so a large supply budget isn’t needed.

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