Unpacked Content
Scientific and Engineering Practices
Engaging in Argument from Evidence
Crosscutting Concepts
Cause and Effect
Knowledge
Students know:
- Electromagnetic radiation (e.g., radio, microwaves, light) can be modeled as a wave pattern of changing electric and magnetic fields or, alternatively, as particles.
- Electromagnetic radiation may be ionizing or non-ionizing type. Non-ionizing type of radiation is used in common electronic devices.
- Non-ionizing type of radiation is used in common electronic devices.
Skills
Students are able to:
- Identify types of electromagnetic radiation.
- Select credible resources from the Internet and AVL for use in the argument.
- Categorize electromagnetic radiation according to safety levels for humans.
- Cite specific textual evidence to support analysis of science and technical texts.
- Determine the central ideas or conclusions of a text; trace the explanation or depiction of a complex process, phenomenon, or concept; provide an accurate summary of the text distinct from prior knowledge or opinions.
- Engage in argument from evidence on the safety of electromagnetic radiation.
Understanding
Students understand that:
- Non-ionizing radiation, such as those emitted in electronics, cannot cause immediate damage, but does interact with the body to potentially cause indirect damage, following long-term exposure.
- Ionizing radiation, such as X-rays and gamma rays, can be hazardous.
Vocabulary
- Electromagnetic waves
- E/M spectrum
- Visible light
- Microwaves
- Frequency
- Radio frequencies
- Video terminals
- Magnetic fields
- Internet resources
- Ionizing radiation
- Non-ionizing radiation
- Wavelength
