Inquiry 9/10-11 PLEASE TAKE OUT YOUR LAB BOOK!

Warm-Up 9/10 and 9/11  Complete the self-assessment you picked up on the way in!  Keep it because we will also do an exit task on the same paper.

Learning Targets  I can create a valid, high quality lab report, including a conclusion using the CLEVR method.  I can describe the structure of bacteria and explain at least one way that they make us sick.

Homework Review Period 3  Get together with your lab group  Share what your favorite color is  If you said GREEN, you are team captain!  Team Captain will get a book, read the questions aloud, gather answers from everyone, and report back to me what your group has questions on.  STOP and THINK on page 20

Homework Review Period 6  Get together with your lab group  Share what your favorite color is  If you said GREEN, you are team captain!  Team Captain will read the questions aloud, gather answers from everyone, and report to me what your group has questions on.

Health Inspector Lab  Collect Data in a table  Table should have the manipulated variables in rows (or columns, your choice)  Responding variable in rows (or columns, your choice)  How will you measure bacterial growth?  FINISHED? RETAPE YOUR PETRI DISH AND PUT IT BACK ON THE CART. Locker Room Girl’s Bathroom Boy’s Bathroom Control Bacterial Growth Before Bacterial Growth After

HEALTH INSPECTOR LAB Conclusion  CLEVR Method!  CLaim: what was your hypothesis? Was it correct or not?  Evidence: give at least two pieces of data to support your claim that your hypothesis was correct or incorrect.  Reasoning: why did your data turn out this way? Use science concepts. This is NOT errors in your experiment. You may need background information to answer this.

CLEVR Conclusion Example  My hypothesis, that Justin Bieber fans would scream louder than Taylor Swift fans because they are more likely to be male and have booming voices, was incorrect.  My data shows that Taylor Swift fans yelled at a range of 93.4 to 98.9 decibels, while Justin Bieber fans yelled at a range of decibels.  An explanation for these results is the make-up of each audience. The average age of Taylor Swift fans was 8.5, while Justin Bieber fans were According to my observations of children ages 8-14 at Lake Wilderness Elementary, Tahoma Middle, and Tahoma Junior High Schools, younger children were more excitable and likely to scream. Also, they jumped more often, possibly causing more noise from bouncing on the concrete floor of Key Arena.

Write your own conclusion using the CLEVR method!

Due Next Time!  Full Lab Report  Testable Question- class question  Hypothesis- mentions both MV and RV, with reasoning  Procedure- step by step so I could carry it out  Data table- shows quantitative and/or qualitative data for all 4 section of Petri dish; clearly labeled  CLEVR Conclusion Reminder- I need receipt for lab books by Friday afternoon!

Bacteria Basics! TIME FOR NOTES!

Bacteria Basics! Multi-Resistant Staphylococcus aureus (MRSA) d4 d4 Write down the positive things that bacteria do for us in your notes!

“ Bacteria”  Single cells  Oldest living organisms  Lack nucleus and most organelles; have cell walls  DNA is in two forms: jumbled strands and circular plasmids

Bacteria = Two Kingdoms  Eubacteria - common bacteria living in and among humans; ex: E. coli  Archaebacteria - bacteria living in extreme conditions- volcanoes, ocean vents, mountain peaks, etc.;

Methanogens (a type of Archaebacteria) E. coli (a type of Eubacteria)

Movement of Bacteria  May move by flagella  May not move at all!

How Bacteria Get Energy  Heterotrophs (get food from outside source)  Autotrophs (make their own food) - Use light energy (cyanobacteria in the ocean) - Use chemicals found in environment (archaebacteria in deep sea vents use hydrogen sulfide gas)

Major Causes of Disease  Organisms that cause disease are called ‘pathogens’  Also known as ‘microbes’ and ‘germs’, when microscopic  The three main groups of pathogens are:  Bacteria  Viruses  Parasitic Fungi, Protists, Animals

How Bacteria Cause Disease  Bacteria cause disease in two general ways:  Breaking down cells for food  Ex: Necrotizing fasciitis is caused mainly by Streptococcus pyogenes (‘flesh-eating bacteria); the bacteria release chemicals that digest cells  Release toxins that harm the body  Ex: Tetanus is caused by Clostridium tetani; the bacteria release toxins that damage cells in the brain and spinal cord, causing spasms and paralysis

Examples of Pathogenic Bacteria BacteriaDisease Staphylococcus (genus)Skin infections, urinary tract infections, food poisoning Escherichia coliFood poisoning Streptococcus (genus)Strep throat, scarlet fever, flesh- eating disease, meningitis, pneumonia Vibrio choleraeCholera Salmonella enteritidisFood poisoning Mycobacterium tuberculosisTuberculosis Clostridium botulinumBotulism

Disease Jigsaw  Choose a disease in your group of 4:  Cholera, Meningitis, Salmonella (food poisoning), Tuberculosis  Make an informational handout that you might find in a Doctor’s office about your disease.  What bacteria causes it?  What does the bacteria look like?  How does the bacteria gets its energy?  How is the bacteria treated (killed)? Is the treatment effective?  How do people come in contact with the bacteria?  What are the symptoms?  How is the disease prevented?

Resources and Requirements  Use or other reputable sites (not Wikipedia)  Record sources on the back.  Must be at least 8.5 x 11  Use color and separate info. into boxes  Write in pen and be neat! Can be typed or hand- written. Due Next Time!

Exit Task  You scored your dream job at Menchie’s Frozen Yogurt. You want to know what will increase sales more- Seahawks Skittles (blue and green) or Brownie Bites. You conduct an experiment.  What is your testable question?  What is your hypothesis?  Make a data table showing the data you would collect.