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DDT in a Food Chain. Science 10 Ms. Lowrie. DDT Facts. a.k.a. dichloro-diphenyl-trichloroethane! Example of pesticide Insecticide Made in 1874 First used during World War 2 (1940s). Let’s Read About It!. The DDT Story page 31. Biological Magnification. Poison accumulates in body - PowerPoint PPT Presentation
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DDT in a Food Chain
Science 10Ms. Lowrie
DDT Facts
a.k.a. dichloro-diphenyl-trichloroethane!
Example of pesticide Insecticide
Made in 1874
First used during World War 2 (1940s)
Let’s Read About It!
The DDT Story page 31
Biological Magnification
Poison accumulates in body
Organisms in higher trophic levels contain MORE DDT than organisms in lower levels
DDT
Task:
Answer the following:
A. List three positive effects that DDT gave human populations.
B. List three negative effects that DDT had on the environment.
C. How did DDT affect birds of prey?
Task:
Answer the following:
#1 – 6 on page 32
Any Questions?
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