## Science Reasoning Center - Light

There are three Light and Color passages that target students' science reasoning abilities. They are ...

8 Questions

This passage describes the conflict between two scientists regarding the dangers associated with cell phone radiation. The rationale behind each scientist's conclusions is described. Questions target a student's ability to comprehend the thrust of each argument, to compare and contrast the reasoning involved, to identify the assumptions that underly the claims, and to predict the impact that future findings might have upon the ongoing debate.

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Light Brightness

13 Questions

This passage uses two different tables to present information regarding the relationship between light intensity and the distance from the source and between light intensity and the power of the source at fixed distances from the source. A model for understanding the inverse square law is discussed. Questions target a student's ability to select data from a table (or two), to interpolate and extrapolate from information given in a table, to draw conclusions consistent with presented information, to identify the relationship among the variables, and to identify statements that are consistent with both the model and the data.

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Shedding Light on Light Bulbs

10 Questions

This passage compares and contrasts four modern light bulb options. Information regarding the light bulbs, their color temperature and the connection to the colors and wavelengths of the ROYGBIV spectrum is presented using two tables and a figure. Questions target a student's ability to comprehend information presented in a body of text, to read from the tables, to relate information in one table to information in another table or a figure, and to combine information from two data presentations in order to identify valid conclusions.

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On the Resource CD:
A Resource CD is being prepared to assist classroom teachers in using this section of the website more effectively within their classrooms. The Physics Classroom plans to release the CD during the spring semester or summer of 2013.

The Light and Color section of the CD will include five different passages, including these three passages. The passages are accompanied by questions, answers with thorough explanations, and a table that associates each question with a specific science reasoning skill (or college readiness standard). Each passage includes considerably more questions than those presented here in the Science Reasoning Center. In addition to PDF files, the information on the CD is also available as Microsoft Word files, allowing teachers the ability to pick and choose questions from the large bank of questions associated with each passage.