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Warm up pg 77 Define: - Carcinogen -Teratogens

Warm up pg 77 Define: - Carcinogen -Teratogens. -Mutagens -Neurotoxins Calculate GPA on your report card. Tell partners when ESPN is and which assignment you are doing. Pick up 1 scratch paper per table—name and which ESPN you are doing Give to me.

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Warm up pg 77 Define: - Carcinogen -Teratogens

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  1. Warm up pg 77Define:-Carcinogen-Teratogens -Mutagens -Neurotoxins Calculate GPA on your report card

  2. Tell partners when ESPN is and which assignment you are doing Pick up 1 scratch paper per table—name and which ESPN you are doing Give to me

  3. Agenda 5-22—No problems today—games tomorrow • Warm up • ESPN prep STAMP • Hot seat summary pg 78 STAMP Hot seat debate STAMP • Present toxin posters STAMP

  4. Warm Up pg 751) What are two differences between plastics?2) What are ways to reduce our use of plastics?3) How do toxins get into ocean?4) Which ESPN assignment are you doing?Pick up new passport and old one—filled in old one=$1 CC

  5. Symposium • A-M present first to 3-4 peers • N-Z makes 4 boxes and listen to 4 peers • We will then switch

  6. 3 assignments—You pick 1Circle and put your name on paper ASSIGNMENT 1—Explore ESPN with a parent/guardian ASSIGNMENT 2—Explore California Science Center ASSIGNMENT 3—Create and present a Model during ESPN

  7. Today’s Agenda May 20 • Warm Up pg 75 • Toxins clip summary pg 75 STAMP 4) Toxin ppt notes pg 76 STAMP 6) Computer research STAMP 7) Gallery walk on toxins

  8. Toxins in Whales • https://www.youtube.com/watch?v=83aCjGyOdRQ&noredirect=1

  9. Toxin Notes pg 76Copy everything in blue

  10. Chemical Toxins • A chemical that can cause temporary or permanent harm or death to a living organism is considered toxic. • Toxins are labeled according to what body systems they affect. • Mutagens damage the DNA within cells, increasing the frequency of mutations.

  11. Carcinogens are chemicals, forms of radiation, or viruses that increase the risk of cancer. • Arsenic • Benzene • Formaldehyde • Tobacco smoke • UV radiation • Teratogens are chemicals that cause birth defects inan unborn fetus. • Ethanol • Benzene • Lead • Mercury

  12. Neurotoxins are chemicals known to disrupt the function of the brain, spinal cord, and other nerves. • Mercury can cause sensory impairment, lack of coordination, and disrupt other nervous system functions. • Lead, another neurotoxin, was used as an additive in gasoline until 1976. • Following a ban of its use, an 80% drop in blood lead levels were observed, as well as a 6-point gain the average IQ of children.

  13. Endocrine hormone disruptors interfere with the function of normal chemical messengers in the body. • Hormone mimics have similar shapes to natural hormones and amply their effects. • Hormone blockers prevent natural hormones from attaching to their target organ.

  14. One commonly used chemical called BPA is known to be a hormone mimic. • BPA is found in many plastics, as well as the linings of cans and boxes used in food packaging. • Scientists disagree over the population effects of BPA, and its use in the United States is still legal. • We can make better choices to limit toxins in our body and environment

  15. Toxins build up more and more in the food chain. This is called biomagnification.

  16. Computer Research • You each have your own toxin based on number • Answer 1-7 by 2:30 • Be ready to present in our symposium

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