1. Week 9 Notes and Warm-Ups
9/18-22/2017

2. CHEMISTRY Warm up: Study for Test (5 min)
Monday September 18th, 2017
Learning Target: Predict properties of elements and compounds using trends of the periodic table and explain the details of atomic structure (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Periodic Table, Calculator
Agenda:
Warm up: Study for Test (5 min)
Periodic Table Trends & Subatomic Particles Test
If you finish early:
Check out a laptop from the back of the room and work on History of the Atom Project
Assignment:
History of Atom Project due THIS Wed/Thurs

3. Investigative Science
Monday September 18th, 2017
Learning Target: Understand the origins and function of a microscope (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Webquest Worksheets
Agenda:
Warm up: Study for Test (5 min)
Sustainability Quiz
Introduction to Microscopes Notes
Quiz Corrections Due TODAY
Assignment:
None

4. CHEMISTRY Warm up: History of the Atom Notes
Tuesday September 19th, 2017
Learning Target: Understand the history of the atom and the development f atomic theory (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Periodic Table, Calculator
Agenda:
Warm up:
A sample of silver as it occurs in nature is 52.0% of isotope Ag-107 and 48.0% of isotope Ag-108. What is the average atomic mass of silver?
Define “light” (as in, the thing that is emitted from lightbulbs). What is it made of? How do you know?
History of the Atom Notes
History of the Atom Project Rubric
Assignment:
History of Atom Project due THIS Wed/Thurs

5. Scientists and Their Contribution to the Model of an Atom

6. History of the Atom - Timeline
Antoine Lavoisier
makes a substantial number of contributions to the field of Chemistry
J.J. Thomson discovers the electron and proposes the Plum Pudding Model in 1897
Niels Bohr proposes the Bohr Model in 1913
James Chadwick discovered the neutron in in 1932
1766 – 1844
1871 – 1937
1887 – 1961
460 – 370 BC
1700s
1800s
1900s
Erwin Schrodinger describes the electron cloud in 1926
Democritus proposes
the 1st atomic theory
John Dalton proposes his atomic theory in 1803
Ernest Rutherford performs the Gold Foil Experiment in 1909
1891 – 1974
1743 – 1794
1885 – 1962
1856 – 1940
Click on picture for more information

7. Democritus (460 BC – 370 BC)
Proposed an Atomic Theory (along with his mentor Leucippus) which states that all atoms are small, hard, indivisible and indestructible particles made of a single material formed into different shapes and sizes.
Aristotle did not support his atomic theory
Image taken from:

8. Image taken from: www.ldeo.columbia.edu/.../v1001/geotime2.html
Antoine Lavoisier (1743 – 1794)
Known as the “Father of Modern Chemistry”
Was the first person to generate a list of thirty-three elements in his textbook
Devised the metric system
Was married to a 13-year old Marie-Anne Pierette Paulze; she assisted him with much of his work
Was a tax-collector that was consequently guillotined during the French Revolution
Discovered/proposed that combustion occurs when oxygen combines with other elements
Discovered/proposed the Law of Conservation of Mass (or Matter) which states, in a chemical reaction, matter is neither created nor destroyed
Image taken from:

9. Image taken from: chemistry.about.com/.../John-Dalton.htm
In 1803, proposed an Atomic Theory which states:
All substances are made of atoms; atoms are small particles that cannot be created, divided, or destroyed.
Atoms of the same element are exactly alike, and atoms of different elements are different
Atoms join with other atoms to make new substances
Calculated the atomic weights of many various elements
Was a teacher at a very young age
Was color blind
Image taken from: chemistry.about.com/.../John-Dalton.htm

10. Image taken from: www.wired.com/.../news/2008/04/dayintech_0430
J.J. Thomson (1856 – 1940)
Proved that an atom can be divided into smaller parts
While experimenting with cathode-ray tubes, discovered corpuscles, which were later called electrons
Stated that the atom is neutral
In 1897, proposed the Plum Pudding Model which states that atoms mostly consist of positively charged material with negatively charged particles (electrons) located throughout the positive material
Won a Nobel Prize
Image taken from:

11. J.J. Thomson (1856 – 1940)
Thomson studied the passage of an electric current through a gas.
As the current passed through the gas, it gave off rays of negatively charged particles.
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12. Ernest Rutherford (1871 – 1937)
In 1909, performed the Gold Foil Experiment and suggested the following characteristics of the atom:
It consists of a small core, or nucleus, that contains most of the mass of the atom
This nucleus is made up of particles called protons, which have a positive charge
The protons are surrounded by negatively charged electrons, but most of the atom is actually empty space
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Did extensive work on radioactivity (alpha & beta particles, gamma rays/waves) and was referred to as the “Father of Nuclear Physics”
Won a Nobel Prize
Was a student of J.J. Thomson
Was on the New Zealand $100 bill
Image taken from:

13. Image taken from: commons.wikimedia.org/wiki/File:Niels_Bohr.jpg
In 1913, proposed the Bohr Model, which suggests that electrons travel around the nucleus of an atom in orbits or definite paths. Additionally, the electrons can jump from a path in one level to a path in another level (depending on their energy)
Won a Nobel Prize
Worked with Ernest Rutherford
Image taken from: commons.wikimedia.org/wiki/File:Niels_Bohr.jpg

14. Image taken from: nobelprize.org/.../1933/schrodinger-bio.html
Erwin Schrodinger ( )
In 1926, he further explained the nature of electrons in an atom by stating that the exact location of an electron cannot be stated; therefore, it is more accurate to view the electrons in regions called electron clouds; electron clouds are places where the electrons are likely to be found
Did extensive work on the Wave formula  Schrodinger equation
Won a Nobel Prize
Image taken from: nobelprize.org/.../1933/schrodinger-bio.html

15. Image taken from: www.wired.com/.../news/2009/02/dayintech_0227
James Chadwick (1891 – 1974)
Realized that the atomic mass of most elements was double the number of protons  discovery of the neutron in 1932
Worked on the Manhattan Project
Worked with Ernest Rutherford
Won a Nobel Prize
Image taken from:

16. Democritus & John Dalton
Progression of the Atomic Model + -
The structure of an atom, according to:
Democritus & John Dalton
James Chadwick
J.J. Thomson
Neils Bohr
Ernest Rutherford
Erwin Schrodinger

17. Greek X Dalton Thomson Rutherford Bohr Wave Indivisible Electron
Nucleus
Orbit
Electron Cloud
Greek X
Dalton
Thomson
Rutherford
Bohr
Wave

18. Investigative Science
Tuesday September 19th, 2017
Learning Target: Understand the origins and function of a microscope (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil,
Agenda:
Warm up: Video Reflection
What did you learn? How can you apply this new knowledge to my class and to your life?
Introduction to Microscopes Notes
Microscope Lab Tomorrow
Assignment:
Microscope Notes Worksheet

19. History of the microscope
Who is Leeuwenhoek?
Glue in and label Leeuwenhoek’s microscope
Who is Robert Hooke?
The advances in microscopes:
Compound light
Transmission Electron
Scanning Electron
Summary:
History of the microscope

20. Early Microscopes - Anton Van Leeuwenhoek
The father of microscopy, Anton Van Leeuwenhoek of Holland ( ).
Anton Van Leeuwenhoek was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.
Microscope had a power of 20x or 30x.

22. Robert Hooke
In 1665, the English physicist Robert Hooke looked at a sliver of cork through a microscope lens and noticed some "pores" or "cells" in it.
Hooke was the first person to use the word "cell" to identify microscopic structures when he was describing cork.

24. Compound Light Microscopes
Uses light
Has two lenses
Magnification limited to 2000x

25. Transmission Electron Microscope (TEM)
Uses beams of electrons
Magnification of
500,000 x
Has two limitations:
Good only for thin specimens
Only dead cells can be observed

26. Scanning Electron Microscope
Electrons are reflected from the surface of the specimen
Produces a 3-d image
100,000X
Good for the thicker specimens
Lacks the magnification and resolution of the transmission electron microscope

27. Technological Advances in Microscopes

29. Parts of the Microscope
Arm: This part on the side of the microscope is used to support it when it is carried.
body
Base: The bottom part of the microscope.
Parts of the Microscope

30. Parts of the Microscope
Diaphragm: This part of the microscope helps you adjust the amount of light that reaches the specimen
Light Source: Projects light upwards through the diaphragm to allow you to see the specimen.
Parts of the Microscope

31. Parts of the Microscope
Stage: Part of the microscope that supports the slide that is being viewed
Stage Clips: These are used to hold a slide
in place on the stage
Parts of the Microscope

32. Parts of the Microscope
Revolving Nosepiece: This part holds the objective lenses and is able to rotate to change magnification.
OBJECTIVE 4X: scanning objective lens with a total magnification of 40X
OBJECTIVE 10X: Low power objective lens with a total magnification of 100X
OBJECTIVE 40X objective lens with a total magnification of 400X
Parts of the Microscope

33. Parts of the Microscope
Ocular Lens: The 10X lens you look through on a compound microscope
Body tube: long tube that holds the ocular lens
Parts of the Microscope

34. Parts of the Microscope
COARSE ADJUSTMENT KNOB - This part moves the stage up and down to help you get the specimen into view.
FINE ADJUSTMENT KNOB - This part moves the stage slightly to help you sharpen or “fine” tune your view of the specimen.
Parts of the Microscope

35. Comparison of Microscopes

36. CHEMISTRY Warm up/Reflection:
Wed./Thurs. September 20th/21st 2017
Learning Target: Understand the history of the atom and the development f atomic theory (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Periodic Table, Calculator
Agenda:
Warm up/Reflection:
How much effort do you personally think you put into your project? Would you do anything differently if you got to re-do your project?
What do you need the most review on for the Midterm?
History of the Atom Project Presentations
Start to review for Mid-Term.
Assignment:
History of Atom Project Notes

37. Answer in your notebook:
When did they live? Where did they live?
What new information did they contribute to the understanding of the atom?
How did they find this new information? (what experiments did they do?)
Interesting facts other accomplishments, personal information, famous historical events at the time, Etc

38. Investigative Science
Wed./Thurs September 20th/21st, 2017
Learning Target: Understand the origins and function of a microscope (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Microscope Notes
Agenda:
Warm up:
Draw a sketch of the specimen shown on the board through the microscope.
Microscope Demo
Microscope Lab
Assignment:
Microscope Lab Worksheet

39. CHEMISTRY Warm up: Finish History of the Atom Project Presentations
Friday September 22nd 2017
Learning Target: Understand the history of the atom and the development f atomic theory (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Periodic Table, Calculator
Agenda:
Warm up:
Write three interesting facts about three different scientists you learned about yesterday.
Finish History of the Atom Project Presentations
Review PT&SAP Test
Start to review for Mid-Term.
Assignment:
History of Atom Project Notes
Turn in Warm-Up Sheets
Stamp Check Monday

40. Stamp Check (Due Monday):
CHEMISTRY
Friday September 22nd 2017
Learning Target: Understand the history of the atom and the development f atomic theory (S1 C3 PO1-7; C4 PO1-4)
Stamp Check (Due Monday):
Alien Periodic Table
Works Cited Page
(From Research day, CANNOT BE MADE UP)
Beanium Post-Lab Worksheet
History of the Atom Notes

41. Investigative Science
Friday September 22nd, 2017
Learning Target: Understand the origins and function of a microscope (S1 C3 PO1-7; C4 PO1-4)
Take out: Notebook, pencil, Microscope Lab Worksheet
Agenda:
Warm up:
What's the hardest thing we’ve learned this quarter?
Review Sustainability Test
Midterm Study Guide
Assignment:
STUDY FOR MIDTERM NEXT WED/THURS
Stamp Check Monday

42. Investigative Science
Friday September 22nd, 2017
Learning Target: Understand the origins and function of a microscope (S1 C3 PO1-7; C4 PO1-4)
Stamp Check:
Easter Island Article Activity
Microscope Notes Worksheet
Microscope Lab Worksheet