POM - 3 Predicting Density

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# POM - 3 Predicting Density - PowerPoint PPT Presentation

POM - 3 Predicting Density. What makes things float and sink? Coke Can Demonstration - (make predictions, observations and your own explanations). PS - How can the density be used to predict whether something will float or sink (buoyancy)?

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Presentation Transcript

### POM - 3 Predicting Density

What makes things float and sink?

Coke Can Demonstration - (make predictions, observations and your own explanations).

PS - How can the density be used to predict whether something will float or sink (buoyancy)?

Hyp - If an object’s density is higher then (your prediction) because (your reason).

Variables - (Identify the MV and RV)

Floating and Sinking Test

(Place Table 1 in your journal.)

(Copy the densities of the 7 objects from your data in POM-2.)

(Test our hypothesis by put each object in water.)

Procedures

Read p 26 steps 4-15 then summarize these steps into your journal. Remember procedures need to:

• Be written in steps that are clear and detailed enough for someone else to do the investigation without you.
• Remind us to record your measurements
• Include repeated trials (at least 3 times) or in this case comply our class data and take an average.
Procedures
• Measure 25 ml of vegetable oil and measure the mass. Calculate the density. Record density.
• Repeat #1 with corn syrup.
• Pour vegetable oil and 25 ml of water into the corn syrup cylinder.
• Drop copper cylinder then the nylon spacer into the column.
• Clean - pour the liquids into the waste container.;
Conclusion