How old am I ??
September 28, 2009
1.5 - Isotope and Carbon Dating
Lesson Components
1. Check out Acahualinca, Kennewick Man, and Roopkund. Make notes in your comp book. How was C-dating used?
2. Determine C14/C12 ratio in our sample of frozen mammouth. I'm going to remove jellybeans when you're not looking and replace them with seeds. Each day represents 125 years of passing time. What is the half-life of the C14 jellybean? Make a plot of (C12/C14) vs. time. We'll discuss.
3. Watch: http://www.youtube.com/watch?v=31-P9pcPStg
4. Read How Carbon-14 Dating Works at HowStuffWorks (see handout).
We'll also talk about the Carbon-14 Debunkers/Creationists, politics of science (briefly!), and the Earth really is older than 5,000 years.
What are some of the challenges of carbon dating?
Draw solar system diagrams for C14 and C12. How do they vary?
Know these definitions and write them in your comp book:
isotope
radiometric dating
radioactive decay
carbon exchange reservoir
half-life
1. Check out Acahualinca, Kennewick Man, and Roopkund. Make notes in your comp book. How was C-dating used?
2. Determine C14/C12 ratio in our sample of frozen mammouth. I'm going to remove jellybeans when you're not looking and replace them with seeds. Each day represents 125 years of passing time. What is the half-life of the C14 jellybean? Make a plot of (C12/C14) vs. time. We'll discuss.
3. Watch: http://www.youtube.com/watch?v=31-P9pcPStg
4. Read How Carbon-14 Dating Works at HowStuffWorks (see handout).
We'll also talk about the Carbon-14 Debunkers/Creationists, politics of science (briefly!), and the Earth really is older than 5,000 years.
What are some of the challenges of carbon dating?
Draw solar system diagrams for C14 and C12. How do they vary?
Know these definitions and write them in your comp book:
isotope
radiometric dating
radioactive decay
carbon exchange reservoir
half-life
September 15, 2009
September 11, 2009
1.1 - Periodic Table of the Elements
As of July 2009, approximately how many elements are there?
How many occur naturally (not synthesized by human monkeys)?
Identify a Group 8B element:
Identify a Period 5 Noble Gas:
Sodium, Lithium and Potassium are in what family?
Bromine and Iodine are in what family?
What is the symbol for uranium?
What are the symbols for gold and silver?
What are the symbols for nitrogen, carbon and oxygen?
Which is heavier, Gallium or Tin?
What is the atomic mass of selenium?
What is the Latin name for tin?
What is the symbol for tin?
What is heavier, a molecule consisting of four hydrogen atoms and one carbon atom, or a molecule of water?
List the symbols for ten metals:
List two metals that are magnetic:
Listen to Tom Lehrer’s Song, the Elements on YouTube
How many protons does an atom of carbon have?
How many neutrons are in Carbon-12? vs Carbon-14?
How many occur naturally (not synthesized by human monkeys)?
Identify a Group 8B element:
Identify a Period 5 Noble Gas:
Sodium, Lithium and Potassium are in what family?
Bromine and Iodine are in what family?
What is the symbol for uranium?
What are the symbols for gold and silver?
What are the symbols for nitrogen, carbon and oxygen?
Which is heavier, Gallium or Tin?
What is the atomic mass of selenium?
What is the Latin name for tin?
What is the symbol for tin?
What is heavier, a molecule consisting of four hydrogen atoms and one carbon atom, or a molecule of water?
List the symbols for ten metals:
List two metals that are magnetic:
Listen to Tom Lehrer’s Song, the Elements on YouTube
How many protons does an atom of carbon have?
How many neutrons are in Carbon-12? vs Carbon-14?
September 09, 2009
1.0 Periodic Table of Elements
Attend lecture and discussion with Master Kusa.
Keep notes and questions in your science comp book.
Read Wiki's "periodic table"
Try
http://www.americanelements.com/
and
http://mistupid.com/chemistry/periodictable.htm
Listen to Tom Lehrer's Song, The Elements
Slide show at:
States of Matter #8 (ten slides)
http://science-class.net/PowerPoints/statesofmatter.ppt
Element or Compound (let's do this together)
http://tre.ngfl.gov.uk/uploads/materials/16659/8E%20lesson%204%205.ppt
Hands-on with Master Kusa
Fun Practice Quiz
http://www.docbrown.info/page03/3_34ptable/ptableQmc.htm
Keep notes and questions in your science comp book.
Read Wiki's "periodic table"
Try
http://www.americanelements.com/
and
http://mistupid.com/chemistry/periodictable.htm
Listen to Tom Lehrer's Song, The Elements
Slide show at:
States of Matter #8 (ten slides)
http://science-class.net/PowerPoints/statesofmatter.ppt
Element or Compound (let's do this together)
http://tre.ngfl.gov.uk/uploads/materials/16659/8E%20lesson%204%205.ppt
Hands-on with Master Kusa
Fun Practice Quiz
http://www.docbrown.info/page03/3_34ptable/ptableQmc.htm
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