Monday March 8

In Class work on science fair reports Lab 201

HWK due 1 pg. Science Fair Reflection

Tuesday March 9 ( CR 11 only )

In Class work on science fair reports Lab 201

HWK due Science Fair final report due ( -10% per day late )

Wednesday March 10 ( CR 10 only )

In Class Green Chemistry ; Toxicity ; Concenetration ( see in class notes attached )

HWK due Science Fair final report due ( -10% per day late )

Pictured above: Phthalate molecule that occurs in our shampoo, lip gloss, and deodorant. Why is this chemical so widely used? Is this chemical harmful or safe?

Thursday March 11

In Class Review of Chemistry topics

HWK due PERCS: How Safe are Cosmetics and Body Care Products? CLICK LINK 1 pg. typed (CR 11)

Friday March 12

In Class Green Chemistry ; Toxicity ; Concenetration ( see in class notes attached )

HWK due

Toxicity Research

Directions: Find at least 5 products at home with the labels that warn of toxicity. For each product, give the name of the product, and answer the following questions in your notebook. If you missed the lecture CLICK HERE and HERE for an articles on Green Chemistry

1. List the first 3 ingredients that appear on the label.
2. How does each label advise you to avoid harmful exposure to the product?
3. What does each label tell you to do if a dangerous exposure does occur?
4. Using all of this information, what can you hypothesize about the chemical properties of each product? (For example, contains salts, acids, metals or alcohols ).
5. Look at the recommended treatment for the misuse of the product. What chemical and physical processes do you think might be involved in treatment? (For example, if a chemical label says DO NOT INGEST. IF ACCINDENTIALLY INGESTED DRINK WATER. What do you think is happening in your body after ingesting the chemical? Why would drinking water alleviate any negative impacts? )
6. List 3 questions you have related to the chemistry or toxicity of these products?

Green Chemistry at MOS Assignment (CR 10 only)

Directions: Use 2 pages typed to discuss what you learned about Green Chemistry at the MOS.

Guiding Questions:

1. What does “Green Chemistry” mean? How does it relate to you?
2. Should Green Chemistry be practiced in schools or companies that make products you use?
3. What has Green Chemistry contributed to society?
4. What challenges do green chemists face?

Monday March  15

In Class Green Chemistry ; Toxicity ; Concenetration ( see in class notes attached )

HWK due

PERCS: Birth Defect Study Casts Doubt on Phthalate Fears CLICK LINK 1 pg. typed (CR 11)

Reread the article “Saving Face: How Safe are Cosmetics and Body Care Products”and answer the analysis questions below in complete sentences: (CR 11)

1. Describe 3 chemicals commonly found in cosmetics. Why might these be troublesome.
2. Use your knowledge of lethal dosage to explain how to confirm the toxicity results in the article.
3. If the LD50 of phthalic acid is 1500 mg per kg. How much can you ingest at once? If 12 mg is in 1 stick of lipstick. What is the amount of phthalates someone who uses 1 stick of lipstick every 6 months will be exposed to over 20 years? Woud this amount be lethal? Explain your reasoning.
4. What are the major challenges for consumers who want to buy “safe” cosmetics?
5. How does the safety regulation of cosmetics in the US compare to Europe (E.U)?
6. What does Archer mean when she  likens the regulation in the industry to a “fox guarding the hen house”?

PERCS: How Safe are Cosmetics and Body Care Products? CLICK LINK 1 pg. typed (CR 10)