1/15 & 1/16 - 8th Grade Agenda

Learning Objective: Learn about Organic CompoundsCollect HW: Reading & Notetaking: p.148 – 150Classwork Chap 6,7&8 Study Guide.Textbook Reading p. 308 - 318HW: Reading & Notetaking p.151 – 152Reminder: Data Table, Graph & Procedure due 2/5 & 2/6 (15 Points) Reminder: Chap 6, 7 & 8 test on 1/22 & 1/23

Daily Reflection

• Prompt: Write 3 facts about polymers.

What is a Isomer?

• Compounds that have the same chemical formula but different structural formulas are called isomers

• Butanes and isobutane have different melting points and boiling points

Double Bond

• Single bond hydrocarbons end in “-ane” like Propane

• Double Bond hydrocarbons end in “-ene” or “-yne” like Ethene.

Hydroxyl Group

• Hydroxyl group is a “OH” compound used for substitute for hydrogen atom in hydrocarbons

• Alcohol is a substituted hydrocarbon that contains one or more hydroxyl group

• Ethanol is produced natually by yeast when they consure sugar stored in corn, wheat and barley

Methanol (poisonous)

Ethanol

Polymers vs. Monomers

• Polymer: A very large molecule (millions of atoms) made of a chain of many smaller molecules.

• Monomer: Smaller molecule – the links that make up the chain

What are some natural Polymers?

What are some examples of Natural Polymers?

• Wool• Cotton• Silk• DNA & RNA• Protein• Carbohydrates• Starch

What are some man made Polymers?

What do plastics and cells in your body have in common?

• They are both made of carbon compounds

What are the four types of polymers found in all living

things?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

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Carbons can form four covalent bonds

• They can also bond to each other in changes and ring shaped groups

What are composites

• Composites combine two or more substances as a new material with different properties

What is the simplest carbohydrates?

• Sugar• One of the most

important sugars in your body is glucose C6H12O6

• Glucose is also known as “blood sugar” because it is circulated through out your body

Starch is a form of complex carbohydrate. Which food

contains lots of starch?

• Rice• Potatoes• Bread• Cereal• Pasta• Wheat

Carbohydrates

• A carbohydrate is an en______ rich organic compound made up of car______, sugar and oxygen.

• Carbohydrates are used to fuel our body

• Sug____ and starches are examples of carbohydrates.

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Lipids = Fat

• Lipids are ene______ rich organic compounds made of car______, hydrogen and oxygen

• Lipids are used by our ner____ cells

• Fats, oils and waxes are all lipids

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Proteins• Proteins are large organic

molecules made of car_____, hydrogen, oxygen, nitrogen.

• Proteins are used to build mus_____, skin and bone cells

• Food that are high in protein include me___, eggs, fi_____, nuts and beans

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Enzymes

• An enzyme is a type of protein that speeds up a che______ reaction in a living thing.

• For example, enzymes in your saliva speed up the dige______ of food.

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Nucleic Acids

• Nucleic acids contain the inst________ that cells need to carry out all the functions of life.

• DNA and RNA are Nucleic Acids

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