This TechXcite: Discover Engineering! module introduces youth to ways in which engineers use science and math to create technology capable of seeing inside the human body. Youth will explore the concept of density and learn how X-rays, CT scans and ultrasound technologies work. In the end, they will build a model of an ultrasound machine.
If you're using this curriculum and not a part of the TechXcite grant, please click here and fill out a brief survey to let us know where you're using it and with how many students. Click the links below to access PDF files of the module:
If you are a 4-H agent or other staff using this TechXcite curriculum module and materials kit as part of the research grant, please complete the following brief survey which asks questions about how you were trained. Please complete the survey even if your only form of training on the module is to watch the pre-recorded videos below. It is not necessary to complete the paper based training survey included with your materials kit if you complete this online survey. » Click Here to Take the Survey
Additional Resources click items below to expand
This site provides a brief overview of electromagnetic radiation with link to radiation spectrum. It describes the reciprocal relationship between wavelength and energy.
Summarizes electromagnetic exposure and health risks. It also provides world-wide exposure limits and regulations.
This site provides a summary of electromagnetic radiation physics. The wave and particle duality of EM radiation is discussed. Provides more in-depth discussions about fundamental properties and equations.
This page provides general overview of x-ray generation, production, and use. It gives some history of their discovery and development. The page also discusses the medical applications and associated health effects.
This site describes the accidental discovery of x-rays and their history. A good description of the physics of their formation with medical applications is also described.
This PDF provides a comprehensive look at the history and use of x-rays in the medical field. Photos and descriptions of several medical uses are described in good detail.
Provides an overview of the medical diagnostic uses. Shows nice images of head and chest images. Also describes mechanics and shows image of the mechanics of a modern CT machine.
This site describes the medical uses, risks, and benefits to patients. This page also discusses laws, regulations, and performance standards for computed tomography.
Provides a broad overview of the multiple uses of ultrasound. A large portion of the page is devoted to medical imaging however, industrial and commercial uses such as range-finding, cleaning, and safety are also discussed.
This site provides a description of what ultrasound is and how it is used, particularly in medical imaging. The page also describes the multiple types of ultrasound e.g. bmode, Doppler, 3D.
This curriculum is currently being piloted and has not been approved by National 4-H Council. If you have suggestions or would like more information, please contact us at firstname.lastname@example.org.