Middle School Physical Science Teacher Guide

(PS-3852)

Features 23 core lab activities that cover the fundamental concepts of Force & Motion, Energy Transfer, Electricity & Circuits, Fluids and more.

Observing Phase Changes

Lab Summary

Use a temperature sensor to measure the change in temperature during the heating of two different mixes of ice and water – one with distilled water only and one with salt dissolved in distilled water.

Theory

In this activity, students investigate the effect of solid-liquid transitions on the temperature of ice water solutions. They also:

  • Learn that energy is a property of many substances and is associated with heat, light, electricity, mechanical motion, and the nature of a chemical
  • Observe effects and changes in the characteristic properties of water such as freezing point and density

Method

Students gain experience conducting the following procedures:

  • Setting up the equipment and work area to measure the change in temperature during the heating of two different mixes of ice and water – one with distilled water only and one with salt dissolved in distilled water
  • Heating an ice and water mix until all the ice has melted
  • Comparing the temperature versus time graphs of melting for the two mixes
  • Using math and critical thinking skills to compare and analyze melting points

Sensors / Equipment Used:

PASPORT Chemistry Sensor

(PS-2170)

Allows students to measure Temperature, pH/ISE/ORP, Absolute Pressure & Voltage in one sensor. For use with PASPORT Interfaces.

Your Bundle Options:

Option 1:

Middle School Physical Science Bundle

(PS-2914)

Equipment bundle for teaching 23 Middle School Physical Science Teacher Guide labs.

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.

Interface Required

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