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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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pom 3 predicting density

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
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
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.
procedures1
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
Conclusion
  • Answer the problem statement.
  • Support this specific data (number and observations)
  • Explain how your data supports your conclusion.
grading
Grading
  • Table of Contents (1 pt)
  • Title (1 pt)
  • Why do things float? (1 pt)
  • Demo Observations (1 pt)
  • Problem Statement (1 pt)
  • Hypothesis (2 pts)
  • Procedures (2 pts)
  • Data (3 pts)
  • Conclusion (3 pts)