1. 1/8 & 1/9 - 8th Grade Agenda
Learning Objective: Learn about Properties of Carbon
Collect HW: Reading & Notetaking p.141 – 142
Video: None of the Above
Textbook Reading p
HW: Reading & Notetaking p.143 – 144
Reminder: Last day to turn in late work in 1/13
Reminder HW: Science Fair Background due 1/13 & 1/14 (10 Points)

2. Daily Reflection
Prompt: Name 5 things that are made up of Carbon.

3. Which element is essential life?
Carbon: Because of its unique ability to comb______ in many ways with itself and other elements, carbon has a central role in the chemistry of living org_________
ine
anism

4. Carbon can be arranged different ways

5. What kind of Pure Carbon is this?
Diamond: At very high temp__________ and pressures, carbon atoms can form diamonds.
Diamonds are extremely hard and nonrea______.
erature
active

6. What kind of Pure Carbon is this?
Graphite: In graphite, each carbon atom is bon______tightly to three other carbon in layers
Bonds between atoms in different layers are very we_______.
ded ak

7. Diamonds are the hardest substance on Earth. What is it made out of?
Carbon
Diamonds are formed deep within the earth
At very high temperature and pressure, carbon atoms from diamond crystals.

8. Diamonds and Pencil Leads are both made out of pure carbon
Question: Why is a diamond much harder than pencil lead?
Answer: Difference in the arrangement of molecules

9. Carbon has 4 valence electrons
Because Carbon has 4 valence electrons, it is possible for carbon atoms to from chains and rings

10. What kind of Pure Carbon is this?
Fullerene are carbon atoms arranged in shape of a holl______sphere (Discovered 1985)
In a Nanotube, carbon atoms are arranged in the shape of a long, hollow cylinder (Discovered in 1991).
Nanotubes are tiny, light, flexible and extremely stro_______ ow ng

11. What is made of carbon compounds?
Cotton Shirt
Shampoo
Propane
Meat
Vegetable
Paper

12. Which elements does hydrocarbon contain?
Hydrocarbon is a compound that contains only elements hydrogen and carbon.
Hydrocarbons are flammable

13. 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

14. Double Bond Single bond hydrocarbons end in “-ane” like Propane
Double Bond hydrocarbons end in “-ene” or “-yne” like Ethene.

15. 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

16. 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

17. What are some natural Polymers?

18. What are some examples of Natural Polymers?
Wool
Cotton
Silk
DNA & RNA
Protein
Carbohydrates
Starch

19. What are some man made Polymers?