Evolution -the peppered moth presentation student version
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The document describes how the Peppered Moth evolved through natural selection. Before the Industrial Revolution, most Peppered Moths were light in color to camouflage themselves on light-colored trees. A small number were dark. During the Industrial Revolution, pollution from factories darkened tree bark. This caused dark Peppered Moths to better camouflage while light ones were more visible to birds. Over time, more dark moths survived to reproduce, causing that variety to become more common through natural selection based on environmental changes.
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Evolution -the peppered moth presentation teacher version
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The document discusses evolution through natural selection using the example of the peppered moth. Before the Industrial Revolution, light-colored peppered moths were more common as they could camouflage on light-colored trees. Darker moths stood out and were more likely to be eaten by birds. During the Industrial Revolution, pollution from factories darkened tree bark, causing darker moths to blend in better while light moths were more visible and their numbers declined. This showed how environmental changes can cause natural selection to favor different varieties of a species over time, leading to evolution. Peppered moth
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Evolution -the peppered moth presentation student version
- 1. An Example of Evolution The Peppered Moth
- 2. What is the Peppered Moth? In ____________ there lives a moth called the Peppered Moth. It is called the Peppered Moth because it is mainly white with __________ of black on it.
- 3. The Peppered Moth In England, the Industrial Revolution began in ________. Before ________ the Peppered Moth looked like this:
- 4. The Peppered Moth Before 1750, the Peppered Moth blended in with the trees it liked to live on. It was ___________________. Tree
- 5. A Variety of the Peppered Moth Before 1750 there also lived a kind of Peppered Moth that was almost entirely ___________. It did not blend in with the trees it lived on. Tree
- 6. Variety Even though there were two different ___________ of Peppered Moths, they were both called Peppered Moths. Just like some humans have light skin and some humans have dark skin. All varieties are called ___________.
- 7. A Question for You Which variety of Peppered Moth was easier to spot by birds who love to eat moths?
- 8. What Does That Mean? Because the _______ variety is easier to spot, _______ of them were around before 1750 than the light variety.
- 9. What Does That Mean? ________ of the light variety were able to reproduce. ________ of the dark variety were able to reproduce. The dark variety was headed towards ________________, where no more would be around ever again. This is called ________________________ or Survival of the Fittest.
- 10. Natural Selection Since the dark ones are not as _______ to survive, they will not survive much longer. Thats why Natural Selection is called Survival of the Fittest.
- 11. The Industrial Revolution With the coming of the Industrial Revolution, things were about to ____________ for the Peppered Moth. The Industrial Revolution created factories with chimneys that pumped out dark smoke called _________. The soot covered everything: buildings, roads, and _________.
- 12. The Trees Changed colors Gradually, as the Industrial Revolution kept increasing, more and more soot covered everything. The bark on trees became darker and darker until they were almost _________.
- 13. The Trees Changed Colors Trees _________ the Industrial Revolution Trees _________ the Industrial Revolution
- 14. A Question for You Now after the Industrial Revolution, which variety of Peppered Moth was easier to spot by birds who love to eat moths?
- 15. What Does That Mean? Because the ___________ variety is easier to spot, less of them were around after 1750 than the dark variety.
- 16. What Does That Mean? Now, more of the dark variety were able to ______________. Less of the light variety were able to reproduce. The light variety was now headed towards ________________, where no more would be around ever again.
- 17. What Does All of this Mean? The Peppered Moth used to be mainly ___________ colored. But because of the Industrial Revolution, the _____________ variety (the dark variety) has now become better able to survive. This type of animal has ______________ because of the change in its environment.