Heat Transfer in Fluids

Featured in PASCO’s Middle School Science Teacher Guide

Lab Summary

Students investigate what happens to the temperature of a solution when two substances of different temperatures are mixed.



Students investigate the mixing of substances at different temperatures while they:

  • Develop the understanding that energy is a property of many substances and is associated with heat, light, electricity, mechanical motion, and the nature of a chemical.
  • Recognize that heat can be transferred through a fluid.
  • Learn that heat moves in predictable ways, flowing from warmer objects to cooler objects, until both reach the same temperature.
  • Gain skills and confidence in using scientific measurement tools, the temperature and pressure sensors, as well as the graphing capability of a computer to represent and analyze data.






Students gain experience conducting the following procedures:

  • Setting up the equipment and work area to measure the temperature of three samples of water.
  • Measuring the temperature of a sample of cold water.
  • Measuring the temperature of a sample of hot water.
  • Measuring the temperature of a mixture of equal volumes of cold and hot water after mixing them.
  • Using math skills to average temperatures.



Sensors / Equipment Used

SPARK Science Learning System (PS-2008A)

An all-in-one mobile device that seamlessly integrates the power of probeware with inquiry-based content.

PASPORT Fast Response Temperature Probe (3 pack) (PS-2135)

Allows students to see changes in temperature they could never see before. For use with PASPORT and ScienceWorkshop Interfaces.

Materials Used

Graduated cylinder, 250-mL 
Beakers or cups, 150-mL - 2
Insulated container 
Hot water - 125 mL
Cold water - 125 mL
Red and blue food dyes (optional) - 2 to 4 drops
Stirring rod 

Your Bundle Options:

Option 1:

Middle School Science Starter Sensor Bundle (PS-2924C)

A sensor bundle specifically designed to get you started using probeware in your middle school science lab. Also: perform 37 of the 49 Lab Activities from Middle School Science through Inquiry Teacher Guide.

Option 2:

Middle School Science Standard Sensor Bundle (PS-2933A)

This bundle contains the probeware needed to perform all 49 lab activities in the Middle School Science through Inquiry lab manual.