The Electromagnetic Spectrum
In this multi-day, three-part activity, students begin by sharing their current understanding of light and then observing how visible light can be separated into different colors. In Part B they conduct an investigation to further explore the visible spectrum by using unique Lab-Aids equipment to collect evidence that indicates that different colors of light carry different amounts of energy.The follow-up reading introduces students to the classic experiments that established the existence of infrared and ultraviolet radiation. Students learn about the electromagnetic spectrum, applications of infrared energy, and ways that humans have used electromagnetic energy to extend their sensory capabilities.
Details at a Glance
- 1-2 Days | 1-2 ~50 minute class periods
- 3 Activities
- Accommodates unlimited classes, each with 8 groups of 4 students
- Meets our criteria for supporting literacy
- All materials are non-consumable
- Developed in partnership with SEPUP
Scientific Concepts
- When light shines on an object, it is transmitted through the object depending on the object’s material and the frequency (color) of the light.
- A wave model of light is useful for explaining brightness and color.
- Because light can travel through space, it cannot be a matter wave, like sound or water waves.
- The Sun’s energy arrives as light with a range of wavelengths, consisting of visible light, infrared, and ultraviolet radiation.
- Technology influences society through its products and processes.
- Students evaluate and synthesize information from text.
- Students develop conclusions based on evidence and reasoning.
- Key Vocabulary: electromagnetic spectrum, electromagnetic wave, evidence, frequency, infrared, ultraviolet, visible light spectrum, wave, wavelength
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Comprehensive Teacher Guide with background information, detailed instruction, example data and answers
- Student Sheets with age appropriate background information, full procedure(s), and analysis items
- Materials necessary for the investigation (beyond common classroom items)
- Safety Data Sheets
Kit Components
- 8 Phospho-boxes®
- 8 cards with a star-shaped cutout
- 8 colored-film cards
- 1 diffraction grating
- 32 Student Worksheets and Guides
- 1 Teacher’s Guide
- Not included and needed for instruction: A stopwatch or other form of timing device.
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