# Blowing bubbles research group 2000

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Blowing Bubbles

A research presented by: Capulong, Miguel A.Cube, Francis Andrew B.Javier, Reicherr CIII - SSCBlowing BubblesAdopted from: Nathalie Valencia ChaconPlace the glass inside the basin.Fill the glass halfway with water.Add 1 tbsp. of shampoo to the water. Stir lightlyEach person in the group will take a straw.Wait for my instructions.On my go signal, everyone must blow the water through the straws.Observe what is taking place.Stop blowing when I say so. Blowing BubblesBlowing BubblesUsing a marker, write your observations in large enough letters to be seen when posted on the board.Blowing BubblesOn another sheet/s of paper, complete the following sentence based on your observations or you may make conjectures based on your ideas.______________ affect(s) the __________ (of the bubbles).

You may make several statements. You have 3 minutes to do this. After 3 minutes, post your work on the board.Blowing BubblesIn this part of the activity, you will be exploring what happens to the bubbles when some conditions are changed.You will have to make several decisionsBlowing BubblesFirst, choose one condition that affects the bubbles.This should be the condition that you want to explore by some manipulation.You must have two or three manipulations in this condition (such as different magnitudes, with or without something).

Blowing Bubbles Second, decide what about the bubbles you will observe when you manipulate this condition.You will be running one trial for each manipulation.But before you do the trials, you must decide what conditions will be kept the same through different trialsBlowing Bubbles Then make a tentative guess about what is going to happen to the bubbles when you manipulate this condition.Blowing Bubbles Write your decisions/ ideas on a formatted sheet using a marker and post on the board.After 3 minutes to do this. After 3 minutes, post your work on the board and proceed to the trials.

Blowing Bubbles FormatCondition to manipulative/ explore (only one):

Manipulations (2 to 3)

What to observe about the bubbles:

Conditions that will be kept the same during trials:Tentative guess at to what will happen (complete sentence)Blowing Bubbles After the TrialsWrite a brief report on your observations using a marker. The statement must contain The condition you manipulatedThe different manipulationsWhat you have observed about the bubbles during the trialsThe conditions you have kept the same during the trials.

You have 5 minutes to do this. Post your work on the board.Blowing Bubbles This activity was adapted from the material included in the students as Scientist Training (Costa Rica) by Nathalie Valencia Chacon.Joseph Simon A. Madrinan As lifted from presentation by Harold Mendiola c 2007Variables in Research properties being investigated, or conditions being manipulated or varied

signified a property or a factor whose changes can be measuredVariablesheighttemperatureweightspeedvolumepressureconcentrationPresence/absencemassPopulation sizeamountVariablesVariablesDependentvariableExtraneous variableIndependentVariable (Experimental, Manipulated, Treatment , Grouping)Manipulated, measured, or selected by the researcher as an antecedent condition to an observed behavior

In cause-and-effect relationships, the independent variable is the causeIndependentvariable(Outcomes or Responding)Factor which is observed and measured to determine the effect of the independent variable

Factor that appears, disappears, or varies as the experimenter introduces, removes, or varies the independent variable

Dependent variableDependent variableCannot be manipulated(inherent classificatory attribute variableCan be manipulated(active variableExtraneous VariableThe parts of the experiment that remain the same

Factors must be kept constant in all experimental runsIndependent VariableDependent VariableExtraneous VariableEnd of Presentation

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