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 Intensity

Lab Summary

Use a light sensor, fast response temperature sensor, and stainless steel temperature sensor to show that air temperatures near Earth's surface result largely from the interplay of the sun's insolation and the reflection, absorption and radiation of that energy by materials on 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.

PASPORT Sensor Extension Cable

(PS-2500)

Allows an additional two meter length extension on all PASPORT sensors.

Materials Used:

Balance - 1 per class
Dark rock - 500 g
Dark sand - 500 g
Heat lamp (or 150 W lamp) 
Paper and marking pen 
Paper plate - 4
Right-angle clamp
Ring stand 
Rod 
Scissors 
Cardboard box, (20 cm) or larger 
Tape 
Three-finger clamp 
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.