Thursday, October 30, 2014

Biology due 10/31 & 11/3 Ch 7.1 - 3

Read and take Cornell notes for Ch 7. 1 - 3 , pgs, 181 - 200.

Biology Cell analogy project: DUe 11/17-18/2014



Cell Analogy Group/Individual Project: 500pts  

Task: 
You are to look at the internal structure and function of a cell and create an illustrated diagram, t-chart, web page, power point, story or other teacher approved project format that compares the cell and its’ organelles to an analogous system such as a school, a car, a factory or whatever; each of which have important smaller parts with important functions.

Your project needs to include each organelle listed below and its role in the cell and it will need an analogous system to the cell and each organelle.  Make sure you compare and explain the roles of each organelle and their analogous counterparts.

Ex: Cell = School, where the nucleus, which controls all cell functions, could be compared to the principal in the school.  If you use this example I will not give you higher than a 3 on #3 of the rubric.

Use the text book, Internet, notes and your brains

Grading (subjective rubric = score of 5-0 points based on my feelings about the quality and evident effort on the project and its’ parts)

Grade categories
  1. Cell organelles/structures and function
    1. Include:  cell membrane, cytoskeleton, nucleus, ribosome, endoplasmic reticulum, golgi apparatus, lysosomes, vacuole and mitochondria.  Bonus points: for doing a plant cell (cell wall and chloroplast) = 30pts; Include flagella or cilia = 15pts
       !!!No analogous structures = no Bonus Points!!!
  1. Analogous system with corresponding features for each organelle/structure and function
  2. Quality (color, creativity, attention to detail…)


Deadline Due Date:  Even period on Monday/Tuesday 11/17 or 18/2014

Thursday, October 23, 2014

Biology- Biochemistry Quest Tuesday/Wednesday 10/28 + 29

400 pt. quiz/test on material from Ch 6 in Glencoe biology text book:  elements, compounds, chemical/physical changes, enzymes, properties of water, acid/base/ph , bio-molecules

Earth science Volume of a drop guide sheet



Instructions:  DO NOT WRITE ON THIS HAND OUT!  You and your group will be practicing the steps of the scientific method, conducting an experiment and writing-up a lab. 
·        On a separate sheet of paper write the names of the members of your table that actively help with all parts of the mini-lab; this will be your lab write-up.
·        Write out the question I gave you below, include the label Question:
·        Write our Hypothesis: and then your educated guess to answer the question.  Remember to discuss with your tablemates about how to make an educated guess then record the hypothesis on your lab write-up.
·        Continue writing the label for each step (Q, H, T, M, P, D, A, & C) and following my hints for each step.

Question:  How much space (volume) does a drop of water take up?

Hypothesis:  What is your educated guess to answer the question? Compare 1 drop to 1 mL of water.

Materials:  Every item used for data collection

Procedures: Step by step directions of your experiment that include diagrams that help illustrate your procedures

Data table:  Have room to include ten trials, Yes, do the experiment ten times, make sure everyone in your group has an opportunity to collect data by doing the experiment.

Analysis:   Show an example of how calculated the volume of a drop, in mL. Also show an example of how calculated the average volume of a drop, in mL, for the trials you did. Create a data table and Bar graph showing the average drop # for all other groups in the class.

Conclusion:        Restate your hypothesis. Did you answer the question?
                   How do your results compare to the other tables?  Explain.
How might error have occurred in your experiment?  What affect might it have had?  How can you redo your experiment to attain more accurate
results?
                  
Bonus Points:  if you finish both mini-labs early, you may earn bonus points for conducting a next step to this experiment.  You are limited to the materials provided or on your person.  You may also include a graph(s) of your data for e.c.
Bonus Points: if you finish both mini-labs early, you may earn bonus points for applying your data from this lab to the drops on a penny lab to find the ave. volume of the bubble of water that formed on the penny. Explain what you did and show the calculation.

Friday, October 17, 2014

earth science ; Drops on a penny lab



Drops of Water:  Measurement and Error

Instructions:  DO NOT WRITE ON THIS HAND OUT!  You and your group mates will be practicing the steps of the scientific method, conducting an experiment and writing-up a lab. 
·        On a separate sheet of paper (NOT in the notebook) write the names of the members of your table that actively help with all parts of the mini-lab; this will be your lab write-up.
·        Write out the question given to you below, include the label Question:
·        Write out Hypothesis: and then your educated answer to answer the question.  Remember to discuss with your tablemates about how to make an educated guess then record the hypothesis on your lab write-up.
·        Continue writing the label for each step (Q, H, M, P, D & C) and following the hints for each step.

Question:  How many drops of water can a penny hold?

Hypothesis:  What is your educated guess to answer the question?  You may compare a penny next to a single drop to help you with this.

Materials:  Record every item used for data collection

Procedures: Record Step by step directions of how you used each material listed in your experiment to find your answer, include diagrams that help illustrate complex procedures. Final procedures should be more complex than those listed in your RD.

Data table:  Have room to include fifteen+ trials of data collection.  Yes, do the experiment at least fifteen times, (5 trails per person) make sure everyone in your group has an opportunity to collect data by doing the experiment.

Analysis:      What is your average number of drops? Show an example of how you calculated the average  # of drops for the trials you did. Create a data table showing the average drop # for your group. Make a bar graph of your trails and the average # of drops.

Conclusion:             This should be in paragraph form and not just answers to the following questions
Prompts: Did you answer the question?   Do your results compare to the other tables?  Explain.  How might error have occurred in your experiment?  How can you redo your experiment to attain more accurate results?

Bonus Points:  if you finish early, you may earn bonus points for conducting a next step to this experiment.  You are limited to the materials provided on your person & you must make another lab write up.  You may also include a graph of your data for e.c.
 

Enzymatic Browning mini lab Analysis Questions

1) how did each treatment affect the chemical reaction that occured on the fruit's soft tissue?  Why were some of the treatments more succesful than others?

2) A restaurant owner wishes to serve fresh cut fruit.  What factors might be considered in choosing a recipe for the preparation of the fruit??

Wednesday, October 1, 2014

Biology 10/1 + 2 reading

Read and take Cornell notes for Ch 1, pgs. 5 -21. on biology and scientific method

biology Physical/chemical changes questions 10/ 1 + 2



Observations

1. What did you observe as the candle burned?  What was left after the candle burned?
2. What did you observe as the paper burned?   What was left after the paper burned?
3. What did you observe when you added the salt to the water in the test tube and shook it?  What did you observe when the silver nitrate was added to the salt water?
4. What did you observe when the hydrochloric acid was added to the magnesium metal?

 

Conclusions

1. Identify each of the following as either a physical change or chemical change. Give a reason for your answer.
a. Melting candle wax
b. Burning a candle
c. Tearing paper
d. Burning paper
e. Dissolving table salt
f. Mixing salt water and silver nitrate
g. Cutting a piece of magnesium ribbon
h. Adding hydrochloric acid to magnesium metal
2. Describe two observations you might make when a physical change occurs.
3. Describe two observations you might make when a chemical change occurs.