The focus of this lab is to reinforce learning from your States of Matter Unit. This lab may be very basic in nature, but it gives a big bang in reinforcement!
Students will gain hands on experience with the relationship between temperature, energy, and phase changes through this lab. They will conclude that energy added to the system will either increase temperature (kinetic energy), or be used to bring about a phase change in which kinetic energy is constant, and the energy is used to break down attractive forces holding molecules together (increasing potential energy). Students will also be able to clearly observe how average kinetic energy and temperature are related through their constructed graphs and the diffusion of particles through boiling water and tap water.
Objectives:
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Observe the effects of temperature and energy while heating a substance to bring about phase changes
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Create a heating curve for water
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Relate temperature, energy, and phases changes
Prior Knowledge:
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Understand the concepts of phases of matter and how they relate to energy
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A good understanding of phase changes related to energy changes, changes in attractive forces, and particle movement and arrangement
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Experience reading a Heating/Cooling Curve
Materials Needed for this Lab: basic lab equipment, and no difficult solutions to prepare
Lesson Duration: One class period
Included in This Resource:
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Student directions
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Teacher Notes—detailed lab set up and suggested modifications to the lab
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Student Lab Report w/sample key
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Lab Quiz w/ Key
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Lab Makeup w/ Key
Teacher Prep Time: Light
This lab is appropriate for grades 9-12 chemistry, or physical science.
You will want to use this lab year after year with your States of Matter Unit!
Chemistry Corner
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Check out these other products that you may be interested in:
States of Matter & the Kinetic-Molecular Theory: Gases
States of Matter and the Kinetic Molecular Theory: Liquids
States of Matter and the Kinetic Molecular Theory: Solids
Phase Changes, Phase Diagrams, & Heating/Cooling Curves
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