Happy 123rd BirthdayYosemite!

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=i6u1oBDiJm0JhM&tbnid=GpDZ9p2DrFPztM:&ved=0CAUQjRw&url=http://sciencebitz.com/?page_id=597&ei=tTxKUq_WDOru2QXXioHQDg&psig=AFQjCNE-LgFe3ow8fZgThNcZdDCcpb64rg&ust=1380683297701475

Key Ideas

• Purpose of nitrogen and phosphorus • Why extra nitrogen and phosphorus is added

to soil• Different types of plants need different

amounts of nitrogen and phosphorus • How nitrogen and phosphorus get into water

systems• Eutrophication, hypoxia and dead zones

Create a hypothesis.Which soil do you predict will have

more nitrogen and/or phosphorus and why?

Enriching our Seas to Death

• Readers – share out on what your article was about• Audience – take notes. Key points to know:1. What is eutrophication?2. How is it caused?3. Which nutrient cycles were impacted?4. What are dead zones5. What are the actions of humans that have caused

this?6. What are solutions

http://www.youtube.com/watch?v=8jjN36nwXzU

Exit Card

1. What is eutrophication and what does it cause?

2. Name two problems caused by algae growth (algae is a producer…. That is a good thing, right?)

3. Does nitrogen & phosphorus ( and not carbon or sulfur) cause hypoxia?

Key Ideas

• Purpose of nitrogen and phosphorus • Why extra nitrogen and phosphorus is added

to soil• Different types of plants need different

amounts of nitrogen and phosphorus • How nitrogen and phosphorus get into water

systems• Eutrophication, hypoxia and dead zones

http://www.youtube.com/watch?v=8jjN36nwXzU