Difference between revisions of "DDT"
(Created page with "==Key Stage 3== ===Meaning=== DDT was a pesticide (poison) used on crops to kill aphids which would damage the crops. ===About DDT=== : The DDT was sprayed on crops t...") |
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | DDT was a [[pesticide]] (poison) used on crops to kill aphids which would damage the crops. | + | [[DDT]] was a [[pesticide]] (poison) used on crops to kill aphids (which would damage the crops). |
===About DDT=== | ===About DDT=== | ||
: The [[DDT]] was sprayed on crops to kill aphids. | : The [[DDT]] was sprayed on crops to kill aphids. | ||
: Ladybirds would then eat the aphids and take in the same [[pesticide]]. | : Ladybirds would then eat the aphids and take in the same [[pesticide]]. | ||
| − | : | + | : [[Bird]]s would eat the ladybirds and the [[pesticide]] would build up in their systems. |
| − | : Birds of prey then ate the | + | : "Birds of prey" then ate the other [[bird]]s getting even more [[pesticide]] inside them. |
| − | : It turned out this [[pesticide]] made the shells of the bird of prey's eggs very weak. This meant most of the eggs cracked and the baby birds died before hatching. The population of many birds of prey dropped very quickly. | + | : It turned out this [[pesticide]] made the shells of the "bird of prey's" eggs very weak. This meant most of the eggs cracked and the baby birds died before hatching. The [[population]] of many "birds of prey" dropped very quickly. |
: [[DDT]] was banned when they discovered its harmful effects on birds of prey. | : [[DDT]] was banned when they discovered its harmful effects on birds of prey. | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | [[DDT]] was a [[pesticide]] (poison) used on crops to kill aphids (which would damage the crops). | ||
| + | |||
| + | ==Beyond the Curriculum== | ||
| + | {{#ev:youtube|https://www.youtube.com/watch?v=GLllZ-qiXJA}} | ||
Latest revision as of 07:10, 20 April 2019
Key Stage 3
Meaning
DDT was a pesticide (poison) used on crops to kill aphids (which would damage the crops).
About DDT
- The DDT was sprayed on crops to kill aphids.
- Ladybirds would then eat the aphids and take in the same pesticide.
- Birds would eat the ladybirds and the pesticide would build up in their systems.
- "Birds of prey" then ate the other birds getting even more pesticide inside them.
- It turned out this pesticide made the shells of the "bird of prey's" eggs very weak. This meant most of the eggs cracked and the baby birds died before hatching. The population of many "birds of prey" dropped very quickly.
- DDT was banned when they discovered its harmful effects on birds of prey.
Key Stage 4
Meaning
DDT was a pesticide (poison) used on crops to kill aphids (which would damage the crops).