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The Peppered Moth Study An Example of Natural Selection! Created by C. Rhein

NOW YOU SEE IT, NOW YOU DON'T!. The Peppered Moth Study An Example of Natural Selection! Created by C. Rhein. Forward. Teacher’s Page. TEACHER’S PAGE.

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The Peppered Moth Study An Example of Natural Selection! Created by C. Rhein

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  1. NOW YOU SEE IT, NOW YOU DON'T! The Peppered Moth Study An Example of Natural Selection! Created by C. Rhein Forward Teacher’s Page

  2. TEACHER’S PAGE • MAP standard: The learner will be able to understand that variation in a species increases the chance of survival in the face of a greatly changing environment. • This program should be viewed by the teacher before showing to the students. • It should be used in conjunction with student science journals. Go Back!

  3. In your Science Journal, write similarities and differences between these two organisms! Go Back! Forward

  4. MOTHS! Both have the Scientific Name: • Biston betularia Both are the same moth, commonly called peppered moths. There is a story behind these two different color variations. Click to find out what happened! Go Back! Forward

  5. During the early 1800’s in Birmingham, England there were dark and cream colored moths. However, almost all peppered moths were cream colored because the tree trunks were light colored. Can you find the moth on the tree trunk? Go Back! Forward Would it be an advantage or disadvantage for the moth to be light?

  6. Something was happening in the cities of England at this time, What could that have been? Industrial Revolution A greater number of factories were being created, which meant more pollution! In the Science Journal, WRITE: What do you think was happening to the peppered moths as a result of industrialism? Go Back! Forward

  7. Around 1850, black- colored peppered moths started to become more common than cream, usually in heavily industrialized areas. WHAT’S HAPPENING! Why did the frequency of black moths increase with the growing industries? Go Back! Forward

  8. Darwin’s Theory of evolution by natural selection suggests a hypothesis. Go Back! Forward

  9. White tree trunks were blackened by heavy pollution from factories. Which Moth is better adapted to its environment? Explain why? Go Back! Forward

  10. Perhaps darkmoths sitting on soot-darkened bark escaped being eaten by birds because it was too hard for the birds to see the dark moths against the dark background. • Light-coloredmoths would have stood out against a dark background and would have been easy prey for hungry birds. Therefore, more dark moths survived. Forward Go Back! This is an example of Natural Selection!

  11. WHAT IS NATURAL SELECTION? • Natural Selection- is a gradual change in a species in response to the demands of its environment. • In the SCIENCE JOURNAL, write how the peppered moth during the 1800’s was an example of natural selection in action! Title page Go Back!

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