Density

  • DENSITY LEARNING OPPORTUNITIES

    You are to complete the following activities. These activities will help prepare you for the quiz that you will be taking in a few days. Please complete these learning opportunities with your best effort.

    PART A
    Watch and listen to the video notes and copy the KEY POINTS into your composition notebook. These notes will be part of your grade.




    PART B
    Answer the Mass V. Volume Lab Conclusion questions in your composition notebook. 
    Please answer these in full and complete sentences.
    1. Explain WHAT this activity investigated.
    2. Summarize the steps you took to gather the data you collected.
    3. Summarize the final results of the investigation.
    4. What was the independent variable that was being tested? On which axis was it placed on the graph?
    5. What was the dependent variable that was being measured? On which axis was it placed on the graph?
    6. As the volume of a liquid increased, what happened to the mass? Provide actual numerical data as your evidence. For example, "10 ml of water had a mass of ____ grams and 20 ml of water had a mass of ___ grams."
    7. Would you expect that every group have very similar densities calculated for water, oil, and syrup or would you expect that the densities be different for every group. Please explain your thinking.
    8. Detail where some experimental errors may have occurred in this investigation. How could these be avoided in the future?
    9. Now that you have completed this investigation, what other questions come to mind. For example, a question that I have is, "If a substance is heated up, will it have the same density as when that substance is at room temperature?" (Not having a question is NOT an option. You MUST think of something else you would like to know more about density and ask a question about it.)
    PART C
    Experiment with the online simulation below. Follow the directions below and answer the highlighted questions in your composition notebook. These will be graded.

    • With the Material setting on Wood, adjust the Mass (by sliding the green triangle). Observe what happens. Now adjust the Volume and observe what happens. 

    • Change the Material setting to a different substance and adjust the Mass and Volume slides. Try a third and fourth material.
    1.  What do you notice about what happens to density as the Mass and Volume are adjusted?
    • Click on "Same Mass" and move the blocks into the water tank.
    2.  Draw a simple and neat (not sloppy, Kyle) sketch to demonstrate what happens to the blue, yellow, red and green blocks. Make sure you label the blocks or color-code them.
    • Click on "Same Volume" and move the blocks into the water tank.
    3.  Draw a simple and neat (not junky, Reevo) sketch to demonstrate what happens to the blue, yellow, red and green blocks. Make sure you label the blocks or color-code them.
    • Click on "Same Density" and move the blocks into the water tank.
    4.  Describe the relationship between the volume of the colored blocks and the masses of each block. How does this affect the density?
    • One last thing to do...click on "Mystery". Use the balance scale (on the left) and the Table (on the right) to determine the identity of each block. 
    5.  The purple block is ________.
    The red block is __________.
    The green block is ________.
    The blue block is _________.
    The yellow block is ________.



    PART D
    Complete the Graphing Density worksheet Mrs. Ligon has told you about.