Waves Complete Materials Package

The unit begins with students exploring the intensity of common sounds. By exploring the decibel scale, they come to recognize the astounding range of human hearing. The concepts of frequency and wavelength, wave types, and transmission through different media are applied to sound waves. Individual fictitious profiles and their corresponding audiology graphs are analyzed for the level of risk for noise-induced hearing loss. Then students develop a plan to reduce the risk of noise-induced hearing loss in their everyday life. When students explore electromagnetic waves, they consider the increased health risks of cataracts and skin cancers due to ultraviolet wave exposure for individuals with different exposure and risk factor profiles. They investigate the varying energy levels of electromagnetic waves and explore selective transmission, reflection, and absorption. To apply these ideas to everyday life, they model how ultraviolet light is reflected off of surfaces such as sand, sun, or snow. They design and conduct an experiment to compare the ability of sunscreen to absorb or reflect ultraviolet waves. Then students revisit the profiles previously presented in the unit and analyze the profiles for risk of negative health effects of cataracts and skin cancer due to ultraviolet exposure. Finally, they create a personal plan to protect themselves from unnecessary risk due to ultraviolet exposure.

Included are all materials for up to 5 classes of 32 students (or 160 students), mobile storage cart, Online Teacher Portal access for one teacher for 7 years, which includes:Spanish versions, LABsent, PowerPoints, Teacher’s Edition, Student Book, and supplemental resources.