AP Env. Science B Course Resources

Instructor Information

Emily Kroutil

Phone: 470-238-8663 (voicemail)

The resources in this newsletter are in addition to those found in MODULE 12: Toxicology and Human Health of your course content. You should first go through the content and complete the quizzes and activities. These resources are to supplement your understanding of the concepts. Please contact me if you have questions!

LAB: Toxicology LD50

• The handout for this lab can be found on page 3 of the module.
• Be sure to read the lab completely before beginning your investigation.
• This site (https://nces.ed.gov/nceskids/createagraph/default.aspx) is a great resource for creating a graph. Excel is also a popular choice. This VIDEO shows you how to create a graph with Excel.
• You do NOT need to experiment with real shrimp. Just write your procedures AS IF you were experimenting with real shrimp.
• Watch this video for how to make the graph and other HINTS for this lab.

• Q: Im having trouble with the brine shrimp? What can I do?
• A: The lab handout technically wants you to conduct an experiment, but it asks you to create your lab report using the data they've provided. So if you're having trouble with the shrimp, you should still be able to complete the lab report. You don't have to use live shrimp....although they are fun to watch!

• Q: How do I calculate how much of a substance would be needed to kill 50% of perfect duplicates of myself (the last question on the lab)?
• A: Basically, you’ll want to use the information in the last table and your mass. You will want to multiply your mass times one of those numbers. That will get your kg to cancel out with the kg in the units of mouse/rat LD50. If you pick an LD50 that is already in grams/kg you will not need to convert it. If you pick an LD 50 that is in mg/kg, you will need to convert the mg to grams before you can multiply, since the question specifically asks for grams.
https://youtu.be/hes4eatv7WE

ASSIGNMENT: Toxin Types Graphic Organizer

• The handout for this assignment can be found on page 4 of the module.
• Select four of the below groups of environmental toxins, and download and complete the graphic organizer:
1. Heavy metals
2. Carcinogens
3. Teratogens
4. Neurotoxins
5. Mutagens
6. Irritants
7. Hormonally Active Agents {(HAA) Endocrine or Hormone disruptors}
8. Sensitizers (allergens)
9. Persistent organic Pollutants (POPs)
10. Volatile Organic Compounds (VOCs)

LAB: Tobacco Smoke and Lung Development

• The handout for this lab can be found on page 5 of the module.
• Be sure to read the lab completely before beginning your investigation.
• This site (https://nces.ed.gov/nceskids/createagraph/default.aspx) is a great resource for creating a graph. Excel is also a popular choice. This VIDEO shows you how to create a graph with Excel.
• To conclude this activity you will compose a formal lab report by following the instructions in the document.
• Make sure to include ALL parts (Title, Introduction, Materials/Procedure, Data Collection, Analysis/Discussion, Conclusion) in your lab report for full credit.
• The Introduction and Conclusion sections should be written in paragraph form (NO BULLETED LISTS)
• This video walks you through how to complete this lab (including the lab report): Tobacco Smoke Lab Video
• This is the document I used in the video: Tobacco Smoke Lab Template
Tobacco Smoke Lab

DISCUSSION: Environmental Health Issues

• Use this RUBRIC to help you write a discussion posting that will earn full points.
• Read the following document: Environmental Health Topics A to Z.
• Include the following in your post:

• Name and description of topic
• Human health consequences (briefly describe)
• Describe the environmental links or causes of the human health issue (include which parts of the world having the greatest problem)
• Briefly describe possible prevention of exposure

FRQ: Food Toxins

• To receive full credit for the free response question, you will need to show all steps necessary to explain how the answer was found.
• The College Board used to offer 11 possible points for each FRQ, but a student can never earn more than 10 points on an FRQ. So your FRQs will be graded out of 10 points.
• Watch these videos for help answering FRQs: FRQ Tips and Tricks Part 1, FRQ Tips and Tricks Part 2
• FRQs may NOT be resubmitted for a higher grade.

TEST: Toxicology and Human Health

• Do not begin your test until you have completed all self-assessments, assignments, and the review items and feel confident in your understanding of this material.
• Reviewing the information in the files below before starting your test could help you prepare for the test:
• Risk Assessment
• Solid Waste
• Toxicology

https://youtu.be/HgLSBCf3BYM
https://youtu.be/Qwnzu2nhqvg
https://youtu.be/9mjo43APX8M
https://youtu.be/0EeU3VYeEic