pill sowbuglabs by XYv5Gtj

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									                            Bugs Alive!
Pill bugs, also called wood lice are found anywhere in nature where there is
decaying wood. They are frequently confused with sow bugs, which look very
similar but do not tend roll up when stimulated. Please use care when
handling your bug because he has a long hard day ahead of him (5 hours of
prodding biology classes)

Problem Statement
What life characteristics can be observed in a pill bug?

   1. Obtain a pill bug from me and place it in a small container.

   2. Observe your pill bug to determine whether or not it has an orderly
      structure. Record your answer in the data table. List some other life
      characteristics that you observe (they may be different than the
      ones we discussed in class)

   3. Using millimeters, measure and record the length of your pill bug in
      the data table.

   4. Gently touch the underside of the pill bug with a dull pencil point
      (stimulus). It may be necessary to gently flip the pill bug over with the
      pencil to get at its underside. CAUTION: Use care to avoid injuring
      the pill bug. Record how long the animal remains curled up in seconds
      (response). Record the time in the data table as Trial 1.

   5. Repeat step 4 four more times, recording each trial in the data table.

   6. Calculate the average length of time your pill bug remains curled up in
      a ball.

   7. Post your data on the whiteboard at the front of the class.

   8. Complete the lab analysis.
Data Tables

Organization and Growth and Development
Orderly structure?
Other life characteristics

Pill bug length




Response to Environment
Trial                                Time in seconds
1
2
3
4
5
Total
Average time



Pill bug length: Classroom data graph
 Number of pill bugs




                       Length (mm)
Analysis

1. Explain how you would define the term orderly structure in relation to
   your pill bug? Explain how this trait might also pertain to nonliving
   things.




2. Explain how the classroom data supports the idea that pill bugs grow
   and develop.




3. Explain how the pill bug response to being touched is an adaptation.




4. Do you think that it is an advantage to curl for a longer time or a
   shorter time? Explain
                           Bugs Alive!
Sow bugs, also called wood lice are found anywhere in nature where there is
decaying wood. They are frequently confused with pill bugs, which look very
similar but tend roll up when stimulated. Please use care when handling your
bug because he has a long hard day ahead of him (4 classes of prodding
biology classes)

Problem Statement
What life characteristics can be observed in a sow bug?

   1. Obtain a sow bug from me and place it in a small container.

   2. Observe your sow bug to determine whether or not it has an orderly
      structure. Record your answer in the data table. List some other
      observable life characteristics that you might observe (they may be
      different than the ones we discussed in class)

   3. Using millimeters, measure and record the length of your sow bug in
      the data table.

   4. Allow the bug to move freely for 10 seconds. Measure the distance he
      moved during that time with a ruler.

   5. Note that distance, in centimeters and record it in the data table as
      Trial 1.

   6. Repeat steps 4 and 5 four more times, recording each trial in the data
      table.

   7. Calculate the average distance traveled per trial by your bug.

   8. Post your data on the whiteboard at the front of the class.

   9. Complete the lab analysis.
Data Tables

Organization and Growth and Development
Orderly structure?
Other life characteristics

Sow bug length




Response to Environment
Trial                                Distance (cm)
1
2
3
4
5
Total
Average distance



Sow bug length: Classroom data graph
 Number of pill bugs




                       Length (mm)
Analysis

1. Explain how you would define the term orderly structure in relation to
   your sow bug? Explain how this trait might also pertain to nonliving
   things.




2. Explain how the classroom data supports the idea that sow bugs grow
   and develop.




3. Explain how the activity of the sow bug might affect its survival.




4. Do you think that it is an advantage for a sow bug to be more active or
   less active? Explain.

								
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