# Classroom Resources: States of Matter

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1 – 8 of 8 Classroom Resources

• Mixtures, Melting Point, Freezing Point, Phase Changes, Freezing Point Depression | 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.

• 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.

• Melting Point, Freezing Point, Phase Changes, Molecular Motion, Heat, Temperature, Heating Curve, Graphing | High School, Middle School

### Lesson Plan: Modeling the Melting of Ice

In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a phase change.

• Melting Point, Freezing Point, Phase Changes, Physical Change, Heat, Temperature, Exothermic & Endothermic, Intermolecular Forces, Heating Curve, Graphing | High School

### Lab: Heating & Cooling Curve

In this lab, students will create a phase change graph by adding and removing heat to observe and record data during actual phase changes.

• Melting Point, Freezing Point, Phase Changes, Molecular Motion, Heat, Specific Heat, Temperature, Intermolecular Forces, Heating Curve, Boiling Point, Heat of Vaporization , Heat of Fusion | High School, Middle School

### Activity: Simulation Activity: Heating Curve of Water

In this simulation, students will investigate qualitatively and quantitatively what happens as water changes states.

• Freezing Point, Physical Change, Temperature, Exothermic & Endothermic, 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.

• Density, Physical Properties, Mixtures, Solubility, Freezing Point, Polarity, Phase Changes, Intermolecular Forces, Colligative Properties, Intermolecular Forces, Freezing Point Depression, Mixtures | High School

### Lesson Plan: Fuel Line Antifreeze

In this lesson students will explore the role of a gasoline additive, fuel line antifreeze (generally methanol or 2‑propanol), in reducing the potential of water to block fuel lines in freezing weather. Students will prepare test tube models of water-contaminated fuel tanks and explore the effect of adding different types of fuel line antifreeze. This lesson can be used to bolster concepts about miscibility, density, intermolecular forces, phase changes (freezing), and colligative properties (freezing point depression).

• Physical Properties, Mixtures, Solubility, Melting Point, Intermolecular Forces, Freezing Point, Polarity, Molecular Structure, Solute & Solvent, Intermolecular Forces, Boiling Point, Intramolecular Forces, Graphing, Mixtures, Lewis Structures | High School

### Lab: Physical Properties (High School)

In this lesson, students investigate how intermolecular forces effect physical properties by investigating substances’ melting points as well as solubility.