Featured in PASCO’s Elementary School Science Teacher Guide

Elementary School Science Teacher Guide


Features 29 inquiry based labs designed for elementary students and coordinated with the standards for life, earth and physical sciences.

Freezing & Melting Water

Lab Summary

Use a temperature sensor to measure the temperature of water in different forms and to learn that water can exist in different forms an can be changed from one form to another by heating or cooling.


To understand this content, students:

  • Measure the temperature of their hand and the temperature of an ice cube.
  • Allow ice to melt in their hand and explain that heat from their hand caused the ice to melt.
  • Measure the temperature of a rock salt-ice bath and room temperature water.
  • Freeze room temperature water by placing it in a rock salt-ice bath.

Sensors / Equipment Used:

PASPORT Temperature/Sound Level/Light Sensor


Allows students to conduct all three measurements simultaneously and continuously. For use with PASPORT Interfaces.

Materials Used:

Ice cubes weighing 0.5 g or less - Enough to half-fill the paper cup
Small paper cup 
Snack size plastic bag, re-sealable, 16.5-cm × 8.25-cm
Tape - 1 piece
Rock salt-ice bath (ice to fill a utility tub half full; 300–400 g of rock salt, tap water to cover ice) - 2–3 per class
Paper towels - 1 per student
Water - 15 mL
Projection system (for the teacher only) 
Ice chest (for the teacher only) 

The Associated Bundle:

Elementary School Science Standard Sensor Bundle


This bundle contains the probeware needed to perform all 25 lab activities in the Elementary School Introductory Science Experiments.

Interface Required

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