8 th Grade Science Do Now Make the weekly Do Now on page ___. Why is it important for scientists to do research before starting an experiment? Monday,

8th Grade Science Do NowMake the weekly Do Now on page ___.

Why is it important for scientists to do research before starting an experiment?

Monday, May 13, 2013

8th Grade Science Today’s Schedule1. Do Now2. Science Project

Presentations3. Group Evaluations

Essential QuestionVocabulary

Pre-AP Grade-Level

Infectious Disease Activity


HW due on Friday HW due on Friday

How have diseases changed over time?

How have the effects of disease changed over time?


8th Grade Science Today we will…Objectives: Present Scientific Method Projects


8th Grade Science Scientific Method ProjectsStudents present their Scientific Method Project.


8th Grade Science Scientific Method ProjectsEach student completes a group evaluation card.


8th Grade Science Do NowList five things you know about diseases.

Tuesday, May 14, 2013

8th Grade Science Today’s Schedule1. Do Now2. PBS Clip3. Introduction to Germs4. Disease Research


Pre-AP Grade-Level







8th Grade Science Today we will…Objectives: Students will understand that diseases come from bacteria, fungus, parasites, prions and viral infections.


8th Grade Science Video ClipTuberculosis


http://www.pbs.org/wgbh/evolution/library/11/2/e_s_6.html

8th Grade Science Introduction to GermsUse “Germ Theory and Infectious Disease” PowerPoint.


8th Grade Science Disease ResearchResearch one disease and answer the questions on the handout.


8th Grade Science Do NowDescribe one of the different types of germs.

Wednesday & Thursday, May 15 & 16, 2013

8th Grade Science Today’s Schedule1. Do Now2. Lab – Investigation of an

Unknown Disease


Pre-AP Grade-Level







8th Grade Science Today we will…Objectives: Students will graph statistical data from an epidemic, calculate attack rates, analyze graphical data, design an experiment to investigate the source of a causative agent of an epidemic, and compare the characteristics of known diseases with an unknown.


8th Grade Science LabInvestigation of an Unknown Disease

-Read the Background

-Read the Situation


8th Grade Science LabDefining a Case

- Formulate a working definition

Which group of symptoms would you use to determine if a patient represented a “case”?

Why would you not want to include a symptom such as “sore throat” in your definition?


8th Grade Science LabMaking an Epidemic Curve

- Make a histogram


8th Grade Science LabDetermining Attack Rate

- Attack rate is the proportion of the population that is at-

risk for infection who actually develop the illness over a

period of time.

(Number of cases / Number of people exposed) x 100%

What is the attack rate for the employees at the time of your arrival on Saturday? (show your work)

What information must you have to determine an attack rate for the visitors? Why is it much easier to determine the attack rate for the employees than for the visitors?


8th Grade Science LabContinuing the Investigation (part I)

What is the one thing that all cases appear to have in common?

Formulate a hypothesis as to the source of the illness. Back it up with evidence that you have collected.


8th Grade Science LabContinuing the Investigation (part II)

What does this information tell you about the transmission of the agent causing the outbreak?


8th Grade Science LabContinuing the Investigation (part III)

How would you go about identifying visitors to the health center?

Calculate the attack rate for visitors to the health department. (show your work)

Why do you suppose that the attack rate is considerably lower for visitors than it is for employees?


8th Grade Science LabContinuing the Investigation (part IV)

Revisit the epidemic curve (histogram) you began earlier.

Add the new information to your histogram.


8th Grade Science LabContinuing the Investigation (part V)

Are the epidemic curves for the employees and visitors the same? Give a possible explanation for this.

You now suspect that you are dealing with something in the building itself that is causing people to become ill.

What evidence points to this suspicion?


8th Grade Science LabIncubation Period and Source of the Disease (part I)

About how long does it take someone to come down with the symptoms after being exposed?

Based on this information in the table, which disease would you suspect as the culprit?

However, based on the other evidence you have gathered, you choose to rule these out. Explain why.


8th Grade Science LabIncubation Period and Source of the Disease (part II)

If your suspicions are correct, where would you expect the smoke to go?

What types of samples would you want to take to try to identify the organism responsible for the outbreak?

Suppose you had some lab animals available for testing the air conditioning system. Describe an experiment that you could perform to determine if the air conditioning system in the health department building is really responsible. Be sure to include replication and controls in your design.


8th Grade Science LabIncubation Period and Source of the Disease (part III)

Suppose you had some lab animals available for testing the air conditioning system. Describe an experiment that you could perform to determine if the air conditioning system in the health department building is really responsible. Be sure to include replication and controls in your design.


8th Grade Science Do NowWhich disease that you have learned about this week would you least want to contract? Why?

Friday, May 17, 2013

8th Grade Science Today’s Schedule1. Do Now2. Review Homework3. Video4. Exit Ticket


Pre-AP Grade-Level



HW due HW due




8th Grade Science Today we will…Objectives: Students will view how the outbreak of a disease can affect an entire population.


8th Grade Science HomeworkReview Homework


8th Grade Science VideoKiller Outbreaks

Infectious Disease: Bacteria

Life Science: Viruses


http://animal.discovery.com/tv-shows/other/videos/killer-outbreaks.htm

8th Grade Science Exit TicketExit Ticket


Documents

8 th Grade Science Do Now Make the weekly Do Now on page ___. Why is it important for scientists to do research before starting an experiment? Monday,