1/15 & 1/16 - 8 th grade agenda learning objective: learn about organic compounds collect hw:...
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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
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Daily Reflection
• Prompt: Write 3 facts about polymers.
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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
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Double Bond
• Single bond hydrocarbons end in “-ane” like Propane
• Double Bond hydrocarbons end in “-ene” or “-yne” like Ethene.
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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
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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
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What are some natural Polymers?
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What are some examples of Natural Polymers?
• Wool• Cotton• Silk• DNA & RNA• Protein• Carbohydrates• Starch
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What are some man made Polymers?
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What do plastics and cells in your body have in common?
• They are both made of carbon compounds
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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
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What are composites
• Composites combine two or more substances as a new material with different properties
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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
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Starch is a form of complex carbohydrate. Which food
contains lots of starch?
• Rice• Potatoes• Bread• Cereal• Pasta• Wheat
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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.
ergy
ars
bon
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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
rgy
bon
ve
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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
atsh
bon
cle
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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.
mical
stion
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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
ructions