1. Catalyst
Who discovered the nucleus of the atom? What experiment led to this discovery?
Which scientist discovered the electron? What experiment led to this discovery?
Finished? Get out your homework: What questions do you have?
(Hint: p. 122 problems #35-46)
10/9 (Th) A-day
10/13 (M) B-day
Mr. Flower subbed Thursday.
Ernest Rutherford discovered the nucleus performing his Gold Foil experiment.
JJ Thomson discovered electrons using his cathode ray tube experiment. Cathode rays emit a stream of electrons and he saw the stream was deflected by an electric field toward a positively charged plate suggesting that electrons have a negative charge.

2. Agenda Announcements PSAT Homework Q&A Science News Report: Radon
HW Radon SNR DUE at beginning of next class period.
TURN in missing work (Density Lab)
10/9 (Th) A-day
10/13 (M) B-day
Mr. Flower subbed Thursday.
Ernest Rutherford discovered the nucleus performing his Gold Foil experiment.
JJ Thomson discovered electrons using his cathode ray tube experiment. Cathode rays emit a stream of electrons and he saw the stream was deflected by an electric field toward a positively charged plate suggesting that electrons have a negative charge.

3. PSAT Get enough rest the night before ??? 10/9 (Th) A-day
10/13 (M) B-day
Mr. GC’s PSAT instructions and wisdom.

4. Cold Call: Homework Do: answer when called upon.
Put: revise your answer if it is incorrect.
Finish By: doing it as a group.
When Done: list what still confuses you? How could you stretch yourself?
Switch to doc camera to show questions WITHOUT answers.

5. MYP Science News Report Guide
Reflect on the implications of using science and tie the topic to a factor
Show understanding and correct use of scientific terms
Length—depends upon the complexity of your argument and the topic. Be…
Bold
Brief
Concise (to the point)

6. Tie topic to one of these factors
Cultural
Enviro
Political
Social
Ethical
Economic
Moral

7. Factors
Cultural: Patterns of knowledge, behavior, beliefs, shared attitudes, values, goals and practices that characterize groups of people
Economical: Production, distribution, and use of income, wealth, and commodities
Environmental: Circumstances, objects, or conditions by which one is surrounded
Ethical: Process of rational inquiry to decide on issues as right or wrong, as applied to the people and their actions
Moral: Principles of right or wrong behavior derived from a particular society
Political: Relates to government or public affairs
Social: Interactions between groups of people involving issues such as welfare, safety, rights, justice or class

8. MYP Science News Report Guide
Do: READ the front page of the guide.
Put: underline or highlight key phrases. Write down at least 2 questions you have about how to read an article or write a SNR.
Finish By: 5 minutes.
When Done: Be ready to ask your “?”
THEN List what part will be easy for you?
What part will be a challenge?
Switch to doc camera to show questions WITHOUT answers.

9. Radon Risks High in Portland
Do: PRE-READ the article applying the techniques described in the guide.
Put: your highlights and questions right on the article. I should see pens moving. Conversation is whisper/on academic task
Finish By: 15 minutes.
When Done #1: Move to phase two
When Done #2—Move to phase three
Switch to doc camera to show questions WITHOUT answers.

10. Atoms…Matter
Atoms are too small to be seen with the most powerful microscopes
Scientists rely upon models to understand the atom.
Image of scanning tunneling Microscope retrieved from
Image of scanning tunneling Microscope retrieved from

11. Scientific Models
Scientists create models to visualize complex structures.
For small things, scientists must gather Indirect Evidence to develop their models.
With grateful appreciation to a fellow teacher for these and the next 2 slides.

12. What should a Model look like?
Scientific models may not always look like the actual object.
A model is an attempt to use familiar ideas to describe unfamiliar things in a visual way.
Portrait of Dora Maar seated
This is a painting of a young woman by Pablo Picasso. Does it actually look like a young woman?