Advanced Environmental and Earth Sciences Teacher Guide

(PS-2979)

Teacher manual for Advanced Environmental and Earth Sciences labs. Has both the printed version and a flash drive with teacher tips, a PDF of teacher version and editable Word student version.

Sunlight & Reflectivity

Lab Summary

Use a light sensor, a fast-response temperature probe, and a stainless steel temperature probe to explore the concept that air temperatures near the earth's surface result largely from the interplay of the sun's incoming energy and the absorption, reflection, and radiation of that energy by materials on the earth's surface.

Theory

Students explore the concept that air temperatures near the earth's surface result largely from the interplay of the sun's incoming energy and the absorption, reflection, and radiation of that energy by materials on the earth's surface. In the process, students:

  • Analyze the laboratory evidence showing the differences in reflectivity of various earth materials.
  • Explain the effect of the earth's reflectivity on surface temperatures.

Method

Students gain experience conducting the following procedures:

  • Using light and temperature sensors to measure the reflectivity (albedo) of various earth materials.
  • Using light and temperature sensors to measure air temperature and sunlight intensity throughout the day.

Sensors / Equipment Used:

Advanced Water Quality Sensor

(PS-2230)

MultiMeasure sensor that incorporates pH, conductivity, temperature, and the optical dissolved oxygen probe.

PASPORT Light Sensor

(PS-2106A)

Features a wide measurable range by offering three light ranges accommodating various different measurement situations. For use with PASPORT Interfaces.

Materials Used:

Dark rock - 500 g
Dark sand - 500 g
High intensity incandescent lamp 
Large disposable plate 
Marking pen 
Mass balance - 1 per class
Paper - 1 piece
Rod and clamp 
Scissors 
Small cardboard box, (20 cm) 3 or larger
Tape - 1 roll
Three-finger clamp 
Tripod base and support rod 
White rock - 500 g
White sand - 500 g

The Associated Bundle:

Advanced Environmental and Earth Science Standard Sensor Bundle

(PS-2916A)

Standard bundle for Advanced Environmental and Earth Sciences Teacher Guide,

Interface Required

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