45

PLASTIC BAG PERMEABILITY EXPERIMENT

6.14) Hypothesis: (if/then question)

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6.15) Background: Discuss what you knew before you started.

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6.16) Materials:

a. ___________________________________ f. _____________________________________

b. ___________________________________ g. _____________________________________

c. ___________________________________ h. _____________________________________

d. ___________________________________ i. _____________________________________

e. ___________________________________ j. _____________________________________

6.17) Describe how to perform the experiment. Include what you are changing and what you are measuring.

a. _____________________________________________________________________________

b. _____________________________________________________________________________

c. _____________________________________________________________________________

d. _____________________________________________________________________________

e. _____________________________________________________________________________

f. _____________________________________________________________________________

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6.18) Data Table

Type of solution Did molecules move through

membrane (yes or no)?

Solution 1

Solution 2

6.19) Conclusion:

a. State whether your data proved your hypothesis. __________________________________

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b. Quote your data. (Use some of the numbers from your data table that make the

strongest point for your conclusion.) _____________________________________________

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c. Error: Describe any possible sources of error in the data collection. __________________

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d. Tell how these errors affected the results. Did the errors make the measurements larger

or smaller? ____________________________________________________________________

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e. Explain changes you could make to the experiment to make these errors smaller.

Explain other experiments this experiment made you think of. _______________________

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