Featured in PASCO’s Chemistry through Inquiry Teacher Guide

Chemistry through Inquiry Teacher Guide

(PS-2871C)

Features over 25 inquiry based labs covering the fundamental concepts of lab skills, structure & properties of matter, chemical reactions and more.

Density

Lab Summary

Determine that density is an intensive property of a substance independent of the shape or size of an object.

Theory

Determine that density is an intensive property of a substance independent of the shape or size of an object. Through this investigation, students:

  • Determine the volume of regular- and irregular-shaped objects using geometric calculations and water displacement methods.
  • Use mass and volume data to calculate density using the formula, 

        density = mass/volume

  • Distinguish between intensive and extensive properties.
  • Learn that density is an intensive physical property that can be used to identify unknown substances.

Method

Students conduct the following procedures:

  • Determine the volume of regular-shaped objects through geometric calculation.
  • Determine the volume of irregular-shaped objects through water displacement.
  • Measure the mass and volume of various objects and calculate the density by dividing the two values.
  • Identify the material a plastic cylinder is made from when given a list of substances and their corresponding densities.

Sensors / Equipment Used:

Density Set

(ME-8569)

Investigate density by Archimedes' principle of displacement, specific heats and basic length/volume relationships.

Overflow Can

(SE-8568)

Provides direct volume measurements for materials that displace the liquid for buoyancy experiments.

Materials Used:

Beaker, 150-mL 
Graduated cylinder, 50- or 100-mL 
Balance - 2 or 3 per class
Metric ruler (or calipers) 
Water - 500 mL
String 

The Associated Bundle:

Chemistry Standard Sensor Bundle

(PS-2927C)

Contains the sensors and probes needed to perform all 17 experiments in the Advanced Chemistry Teacher Guide and all 25 labs in the Chemistry through Inquiry Guide.

Interface Required

This experiment may require software and an interface for data collection.