Classroom Resources: States of Matter
1 – 5 of 5 Classroom Resources
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Freezing Point Depression, Mixtures, Phase Changes, Freezing Point, Melting Point | High School, Middle School
Lab: How does Salt "Melt" Ice?
In this lab, students will consider why salt is used to aide in snow clearing and to help keep icy roads safe. They will investigate how salt ‘melts’ ice and determine the best type of salt to do so. Additionally, students will explore the advantages and disadvantages of the various different types of salt.
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Freezing Point, Phase Changes, Freezing Point Depression | Middle School, High School
Lab: Freezing Ice Cream
In this lab, students will investigate changing states of matter, chemical reactions, and the properties of ice and salt while creating their own ice cream.
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Freezing Point, Phase Changes, Temperature, Physical Change | Middle School
Lab: Lemon Ice
This activity explores the interaction between salt and water (ice) as a way to further investigate their impact on the state of matter of a substance. Students will use salt and ice to create a slushy lemonade drink without the use of a freezer. They will learn through this hands-on experiment how salt and ice can rapidly cool a liquid.
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Freezing Point, Melting Point, Phase Changes, Acids & Bases, Physical Change | Middle School
Lesson Plan: Stearic Acid
In this lesson, students investigate how stearic acid undergoes a phase change from solid to liquid and back from liquid to solid. Temperature readings will be collected at one-minute intervals once the acid melts, the heat escapes, and the acid cools. Students are introduced to the idea that energy loss does not always result in a continuous temperature drop.
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Exothermic & Endothermic, Physical Change, Temperature, Freezing Point, Boiling Point | High School, Middle School
Demonstration: Energy
In this demonstration, students will observe the exothermic and endothermic properties of state changes of substances with different freezing and boiling points.