Pollution, Risks and Hazards

3/24: Here's the link to upload your lab into. I don't know if you need to share it first. Guess we'll find out. It is fine to upload a Google doc. I want you to become familiar with writing quality lab reports. If you prefer to hand write or use a program, I'm cool either way, just as long as you are creating all of the sections we described in class. Due April 1.

3/13: We will review today for our exam on Friday. Be sure that you have reviewed all resources: nearpods, quizlets, AP college board, and, the best, your notes.

3/4: We will be working on the salinity lab throughout this week. Monday is the initial setup, with data collection the rest of the week. We'll collect and work the data either Friday or Monday.

3/3: Oh no, an ice storm hits! What to do? Salt the roads. What does salt do to the road? What happens to the salt after the first rain? Does this salt impact the plants near the edge of the road? Does it impact the watershed? Let's examine the impact of salt on seed germination. We'll do a dose-response experiment. Does the amount of salt (dose) matter to seeds? Formulate your group hypothesis. Is salt a good response to icy conditions? Create a lab report in your science notebook. Recall the parts of a science report. You'll take a picture of your lab report and upload the images. 

Research LD 50. What is it and how does it apply to this experiment?  

I'll provide one salt solution which you will use to dilution using the formula C1V2 = C2V2. (You need to practice this APES formula).

Using C1V1 = C2V2

To make a fixed amount of a dilute solution from a stock solution, you can use the formula: C1V1 = C2V2 where:

• V1 = Volume of stock solution needed to make the new solution

• C1 = Concentration of stock solution

• V2 = Final volume of new solution

• C2 = Final concentration of new solution

• Example: Make 5 mL of a 0.25 M solution from a 1 M solution

• Formula: C1V1 = C2V2

• Plug values in: (V1) * (1 M) = (5 mL) * (0.25 M)

• Rearrange: V1 = [(5 mL) * (0.25 M)] / (1 M) V1 = 1.25 mL

• Answer: Place 1.25 mL of the 1 M solution into V1 – V2 = 5 mL – 1.25 mL = 3.75 mL of diluent

2/23: Our first quizzel on water pollution. Please wait until I say start to click on the link.

2/23: Review the top concepts of water pollution through this nearpod. What about air pollution? View this neapod on air pollution, taking notes in your science notebook. What does all of this have to do with us? Learn about the pros and cons of urbanization here. Try to get these done by Friday as the quizzel will be on these three nearpods.

2/16: This unit combines AP College Board unit 7 (Atmospheric Pollution) and unit 8 (Aquatic and Terrestrial Pollution). It includes the impact of all of this pollution on human health, not to mention the rest of the critters that we share Earth with. You should listen to the AP College Board videos - but I would recommend speed them up a bit (ok, a whole lot!).

This  APES unit is unit 7 in our textbook. Be sure to read it, taking notes as necessary. I will be using the questions in the book for our quizzels and test.

Chapter 14 discusses water pollution. 

Chapter 15 is on air pollution and stratospheric ozone depletion. 

Chapter 16 is Waste Generation and Waste Disposal. Waste treatment is always underrated when it comes to its importance in large cities. Too many diseases are spread through untreated waste. Learn how we handle it here in the US and compare that to other countries.

Chapter 17 covers the human health and environmental risks if we do not manage our waste properly.