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General Environmental Science Science Fair Project

Monarch Migration and Global Warming

Monarch Migration and Global Warming | Science Fair Projects | STEM Projects
Monarch butterflies migrate from the Canadian border to the mountaineous jungles of Mexico every year to avoid the cold weather. But with global warming, more rainfall is expected in the Monarch butterflies’ resting ground in Mexico. Will this cause the Monarch butterfly population to dwindle?


The hypothesis is that the Monarch butterfly will not be able to survive wet and freezing cold temperatures.

Method & Materials

You will set up four fish tanks, each with 10 Monarch butterflies. You will spray the butterflies with water and expose them to different conditions. You will observe the butterflies for three days to see if they survive or die.
You will need four transparent fish tanks, 40 Monarch butterflies, a spray bottle, one liter of tap water, and a cold storage room.


The results of the experiment show that all the Monarch butterflies in tank A will survive, some of the butterflies in tank B (approximately 50%) will survive, and the butterflies in tanks C and D will not survive. This proves that the hypothesis is true - that Monarch butterflies will not be able to survive wet and freezing cold temperatures.

Why do this project?

This science project is interesting because it shows how global warming can have a drastic effect on the Monarch butterfly population.

Also Consider

Variations of this experiment could include repeating the experiment without wetting the butterflies' wings first, or finding out more precisely how many hours or days the Monarch butterflies with wet wings will be able to survive in freezing temperatures.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

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