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Seasons and Angle of Insolation

Figure from experiment 1 from Investigating Environmental Science through Inquiry

Introduction

Have you ever wondered why temperatures are cooler in the winter and warmer in the summer? This happens because the Earth’s axis is tilted. The Earth remains tilted as it revolves around the sun. Because of this tilt, different locations on the Earth receive different amounts of solar radiation at different times of the year. The amount of solar radiation received by the Earth or another planet is called insolation. The angle of insolation is the angle at which the sun’s rays strike a particular location on Earth. When the north end of the Earth’s axis points toward the sun, the Northern Hemisphere experiences summer. At the same time, the south end of the axis points away from the sun and the Southern Hemisphere experiences winter.

In this experiment you will investigate the relationship between angle of insolation and temperature change due to energy absorption from a simulated sun—a light bulb.

Objectives

In the Preliminary Activity, you will learn how to position equipment for data collection, learn how to measure angle of insolation, and gain experience using a Temperature Probe.

After completing the Preliminary Activity, you will first use reference sources to find out more about seasons of the year and angle of insolation before you choose and investigate a researchable question.

Sensors and Equipment

This investigation features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Investigating Environmental Science through Inquiry »

Investigation 1 from Investigating Environmental Science through Inquiry Lab Book

<em>Investigating Environmental Science through Inquiry</em> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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