The five images are all of the same thing.

1.What could that thing be?2.How come it can look in so

many different ways?3. Is this thing alive? How can

you tell?

Journal08.14.12

Write on any paper, copy to notebook later)

Name: (Last, First)_ Period: ___Address: ___________________Parents/Guardians:_____,______Phone (home): _________Phone (other, cell): ___________Email (if applies): _____________

Information on Index Card:

Consider the items on the tray.1)Categorize each item to

“Living” or “Non-living”.2) For each item – explain your

choice in a complete sentence.

Journal

In your group, agree on properties that ALL living things must have to be called alive. NO MORE THAN FIVE. Write these criteria on one blank paper with your names on it.

Exchange your paper with another group. Take your back, Revise your list.

FIVE CRITERIA for LIFE

All living things….1. Reproduce, Develop DNA2. Consume Energy Respire,

Feed3. Respond to the environment4. Maintain steady internal conditions Made of cells.5. Evolve

Back to our samples – which is a living thing?

Return to your observation on the tray.* Correct your categorization.- The things that you consider “alive” – do they match all the textbook’s criteria? * Improve your explanation for non-living items: what are they missing to be called alive?Add to your journal answer.

From the homework assignment:Share your lists with your neighbor.-Do you agree about all of the examples?-Point out 3 examples that you have difficulty to decide about.-Share with the class: what is common to those difficult examples?

News alert!

An outbreak of stomach ache started at Anyville. The local health authorities suspect it has to do with the water. To examine the water they have run a number of tests. In one test, they took water samples and spread them on agar plates…..

1. DRAW the result. 2. Respond to the results of the test (What is in the Petri dish with the agar.).Whatever you write, it has to be NO LESS THAN FIVE LINES. Next Step: Rotate your notebook amongst your team members. Add a sentence to each notebook. Add your initials.

What kind of responses did we have in the class?

Observations

Questions

Possible Explanations

1.Why did the bacteria not grow close to the paper disc?

Materials: ‘Old’ Petri dishes, spread sticks, paper discs, forceps, various liquids.

2. What could be done to test if your ideas are correct? Draw your plan.

Materials: ‘Old’ Petri dishes, spread sticks, paper discs, forceps, various liquids.

In you group, plan your group’s experiment – consider that there is room for four different conditions. DRAW YOUR PLAN in your notebooks.

Preparing new agar plates – procedure:A.With a wax pencil, divide your plate to four quarters. Write your group’s name.B.Add a drop of liquid medium.C.Use the spreader to pick up bacteria, spread gently on entire plate.D.Place prepared paper disc(s)

Journal 08.20.12

1) What was the purpose of the experiment we started in Friday? (Which question(s) were we trying to answer?

2) What do you expect from each of the four conditions of the paper discs?

Observe the culture that you started (or that of another group):In your notebook, 1.Draw the resulting agar plate, as detailed as you can.2.Describe the main things we can learn from the results, in terms of A. our purpose, B. our procedure.

Writing a time-line of what we’ve done: “At first, there was an outbreak of stomach ache….”

Stomach ache

?

Our Story: Steps:Problem

Journal 08.21.12

In a pair, use scrambled cards:A. Sort out to general vs. specificB. Place in sequential order.1.Write down the steps in your notebook.2.On a separate paper - Write at least FIVE LINES about the bacteria experiments as if to a friend. Include question, evidence, conclusion.

Periods 2,4:

Scientific American Blog: What is life?

Podcast: What is Life? Wikispaces....

What is life - file