In your notebook on the page after the STIMULUS and RESPONSE title it ORGANIC COMPOUNDS write the following (you don’t need to skip lines): 1 minute- 2 minutes- 3 minutes- 4 minutes-

A cracker is made of flour, baking soda and water. The flour contains a lot of carbohydrate (starch) but no sugar, so the cracker is not sweet. The cracker is an example of a complex carbohydrate. Complex carbohydrates give the body long lasting energy. There are enzymes in your saliva that begin the process of breaking down the starch (carbohydrates) in the cracker into sugars. This chemical change should make the cracker taste sweet over time. Problem: How does chewing a cracker and mixing it with saliva in your mouth affect the taste over time?

Conclusion: 1.How does saliva chemically change the cracker? ________ in the saliva break down the carbohydrates into _______. 2. Why are complex carbohydrates important to the body ? Complex carbohydrates are important to the body because ________ The chemical breakdown of carbohydrates begins in the __________when food is mixed with __________.

When carbohydrates break down, they turn into SUGAR!!!!

ELEMENTS Think about the words on this slide. There are quite a few different words each with its own meaning. The English language has thousands of words, but they have one thing in common. They are all made from different combinations of the same 26 letters. In the same way, all the matter around you is made of about 100 different substances, called elements. *All matter is made of elements.

An element is a substance that cannot be broken down into any other substances by chemical or physical means. In most cases, an element is represented by a one or two letter symbol. Ex. O (oxygen)

CHONPS Foods are made of the same materials as plants and animals from which they come. Foods are made of ORGANIC COMPONDS: CARBON HYDROGEN OXYGEN NITROGEN PHOSPHORUS SULFUR

If you put two or more letters of the alphabet together in a meaningful way, you make a word. Similarly, elements may be combines to make compounds. Compounds are substances made of 2 or more different elements or compounds chemically combined. A formula shows the ratio of elements in the compound. Ex. H 2 O COMPOUNDS

COPY THIS CHART INTO YOUR NOTEBOOK: Name and FormulaIdentify the ElementsOrganic or Nah? Amino Acid (Protein) C 2 H 4 O 2 N Calcium Iodide CaI 2 Glucose (Sugar) C 6 H 12 O 6 Saturated Fat (Lipid) C 10 H 20 O 2 Salt NaCl Identifying Elements and Number of Atoms in Organic Compounds