Snap, Crack, and Twist

Measuring the Constant
Measuring the Constant

The girls measured the dimensions of each candy bar to ensure they were the same.

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Demonstration
Demonstration

ARO volunteer, Lynn, demonstrated how to set up a 3-Point Bending Test.

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Chocolate Lab
Chocolate Lab

After breaking the chocolate, the girls were excited to eat it.

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3-Point Bending Test
3-Point Bending Test

The students created a 3-Point Bending test with two chairs, a chocolate bar, string, and a cup of pennies.

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Flexural Strength
Flexural Strength

The young women measure the flexural strength of each candy bar by carrying out a 3-Point Bending test.

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Snap, Crack, and Twist

      The young women from YWPN discovered how different material properties can influence the strength of a material. This lab used 3 chocolate bars with different ingredients to demonstrate how various microstructures affect the flexural strength of the bars. This "strength" is measured by a 3-point bending test where pennies were added slowly to a cup to measure how much load or stress the material could handle before breaking.

      This lab used chocolate bars as an example of how glass can have different make-ups and microstructures depending on its intended use. The students learned why it is important for scientists and engineers to understand the mechanical properties of different materials before using them.