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Density of Liquids Lab: Determining Order and Density of Unknown Liquids

This agenda includes going over notes on liquid densities, performing a density of water lab, and planning a density of liquids lab. We will also discuss if liquids have different densities and determine the order of layering for different liquids. In addition, there is homework on the procedure for the density of liquids lab.

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Density of Liquids Lab: Determining Order and Density of Unknown Liquids

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  1. Agenda 3/3 Go over exit slip Go over quiz Go over lab Redo lab? Liquid densities notes

  2. Exit Slip 2/22 • Is it possible for two objects to have the same volume and different masses? Why or why not?

  3. Agenda 3/6 • Density of liquids notes • Density of water lab • Planning density of liquids lab Homework: Procedure for density of liquids lab

  4. Do liquids have different densities? Base your argument based off of the photo to the left. • Determine the order of the layeringif the different liquids were: • Water • Honey • Vegetable oil • Dish soap • Corn syrup

  5. Do liquids have different densities? Base your argument based off of the photo to the left. • Determine the order of the layeringif the different liquids were: • Water • Honey • Vegetable oil • Dish soap • Corn syrup

  6. Density of Water Lab • Experimentally determine the density of water within 5% error.

  7. Density of Liquids Lab Determine the density of 8 different unknown liquids and the order in which they should be poured into a column

  8. Density of Liquids lab For this lab you will be working in partners. Task 1: Determine the densities of five unknown liquids (Substances A, B, C). Task 2: You will layer them on top of each other. Task 3: Using the layers of the liquids you will qualitatively determine the density of the two objects that you will submerge

  9. Bell Ringer (2/4) • In what order should the liquids be poured? Give reasoning for your answer.

  10. Density of Liquids lab For this lab you will be working in partners. Task 1: Determine the densities of three unknown liquids (Substances A, B, C). Task 2: You will layer them on top of each other. Task 3: Using the layers of the liquids you will qualitatively determine the density of the two objects that you will submerge

  11. Density of Liquids video • https://www.youtube.com/watch?v=-CDkJuo_LYs Post video questions… • Which liquid was the most dense? Least dense? How do you know? • Which object was the most dense? Least dense? How do you know?

  12. Exit slip 2/5 Consider the lab… • Which substance was the most dense? Least dense? Quantitatively justify your answer. • Describe the density of the two objects you chose. • Why do the liquids layer in a specific order? • What are some sources of error?

  13. Bell Ringer (2/8) • Which liquid is the most dense? Which liquid is the least dense? Justify your answer.

  14. Post Lab Discussion Consider the lab… • Which substance was the most dense? Least dense? Quantitatively justify your answer. • Describe the density of the two objects you chose. • Why do the liquids layer in a specific order? • What are some sources of error?

  15. Bell Ringer 2/9 • When will an object float? When will an object sink? Justify your answer.

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