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# Have your binder. Have a piece of loose leaf paper. Have a pen or pencil. - PowerPoint PPT Presentation

Have your binder. Have a piece of loose leaf paper. Have a pen or pencil. Be in your seat when the bell rings!. Title Date U1-6. OHEC = Observation Hypothesis Experiment Conclude. Let’s Break it down!. See something odd. Observation. Make an If…then… statement. Hypothesis.

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### Have your binder.Have a piece of loose leaf paper.Have a pen or pencil.

Be in your seat when the bell rings!

• OHEC =

• Observation

• Hypothesis

• Experiment

• Conclude

Let’s Break it down!

Observation

• You must identify and control the variables.

• If…I.V.…then…D.V.…

• Independent variable - Cause

• Dependent variable - Effect

• You need two groups to compare results.

• Control Group – does not get the I.V.

• Experimental Group – gets the I.V.

• Collect some data.

Experiment

Control the Variables

Which one is best?

Conclusion

• Observation experimental group should be the independent variable.

• Some students do better on tests than others.

• Hypothesis

• If______________________________then

___________________________________.

• Experiment

• Control –

• ______________________________

• Experimental –

• ______________________________

Example

Example

• Data experimental group should be the independent variable.

• Conclusion? What do you think the data says?

Example

• Data experimental group should be the independent variable.

• Inquire Further:

Example