Exploring Thermal Energy Transfer in Phase Change Materials

The video tutorial explains the process of a phase change material transitioning from a liquid to a solid. Initially, the material is at room temperature. Activation occurs by bending a metal disc, causing solids to form and spread. The material is then placed on a thermometer to observe energy transfer, with temperature readings showing an increase as the material solidifies.

At what temperature does the phase change material start as a liquid?

• 10 degrees Celsius

• 20 degrees Celsius

• 40 degrees Celsius

• 30 degrees Celsius

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NGSS.MS-PS1-4

What action is performed to activate the phase change material?

• Heating it up

• Bending a metal disc

• Shaking it

• Cooling it down

Tags

NGSS.MS-PS1-4

What is the purpose of placing the material on a thermometer?

• To make it solidify faster

• To change its color

• To measure energy transfer

• To measure its weight

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the temperature when the thermometer first shows an increase?

• 25 degrees Celsius

• 30 degrees Celsius

• 35 degrees Celsius

• 40 degrees Celsius

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

At what temperature does the material become a solid?

• 40 degrees Celsius

• 43 degrees Celsius

• 45 degrees Celsius

• 50 degrees Celsius

Tags

NGSS.MS-PS1-4