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Density Rod or Equal Mass Set. Includes 5 metals each weighing 30 grams.

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  • $ 28.98

The equal mass set, also known as the density rod, set contains five bars of metal each with a mass of 30 grams, although they are different lengths. Included are tin, aluminum, steel, zinc, and copper. With this set, students use the water displacement method to find the volume of different rods that all have the same mass. They calculate the density of each rod and use the characteristic density of each material to identify all five rods. Then students consider the relationship between the mass, size, and arrangement of atoms to explain why different rods have different densities.

WarningWARNING: This product can expose you to chemicals including ethyl acrylate and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

This product contains small parts, making it a choking hazard. Only use with adult supervision.

Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.