2.8) The Theory of Evolution and Natural Selection
Have you every wondered .... where did humans come from or what happened to the dinosaurs? Then you were thinking about evolution!
Task 1) What is Evolution? And why is it a theory?
Evolution is defined as a GENETIC change in the characteristics of a species over many generations, resulting in the formation of a new species.
What is meant by the term "species"?
Evolution is defined as a GENETIC change in the characteristics of a species over many generations, resulting in the formation of a new species.
What is meant by the term "species"?
Question: Why is it a theory?
A theory is when a hypothesis has been supported with repeated testing. A theory can change or even be discarded if new observations are discovered. A scientist must always be ready to accept change as science is continually evolving.
A theory is when a hypothesis has been supported with repeated testing. A theory can change or even be discarded if new observations are discovered. A scientist must always be ready to accept change as science is continually evolving.
Task 2) What is Evolution?
In pairs, watch the two youtube clips and answer the questions in the worksheet. You can go on to complete the third activity "Charles Darwin's Scavenger Hunt" to learn more about this important biologist.
In pairs, watch the two youtube clips and answer the questions in the worksheet. You can go on to complete the third activity "Charles Darwin's Scavenger Hunt" to learn more about this important biologist.
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Task 3: How does evolution occur? Through the process of "Natural Selection".
a) Work together in pairs to complete this worksheet in your exercise books. b) Explain how some mosquitos have become resistant to pesticide. |
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Practical: Modelling Natural Selection using Jelly Beans
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Test Your Understanding
Click on the link provided to access an online game explaining natural selection. When you access this link, make sure you complete the following components:
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