Are food preservatives bad for you?

*Please copy and paste the following questions to Google Document and share the document with your student. It will be instantly synced while you enter your student’s answers or corrections.

  1. What are the two major factors that cause food to go bad? (00:35)
  2. What effects does a microbe have on food? (00:42-00:47)
  3. What does oxidation do to the food’s molecules? (00:52)
  4. What approaches can we take to create an inhospitable environment for microbes? (01:21, 01:30)
  5. What is the effect of lactic acid? (01:37)
  6. What do some studies suggest that benzoates may cause? (02:08)
  7. How do sugar and salt preserve food? (02:25)
  8. What are the concerns around having too much jam and salted meats? (02:36)
  9. How does smoke preserve food? (03:13)
  10. Should you be worried about preservatives and look for alternatives?
  11. Do you always throw away food that has expired?
  12. Do you know how shelf life is determined?
  13. Do you have any thoughts on how the expiration date is set up?
  14. Can you list the new vocabulary you learned from this article? What are the definitions of the vocabulary in this context? Can you make your own sentence with the words?