8th Grade Science Unit 2: Waves, Sound & Light 15-16
Topic
Properties of
4
Mechanical and
Electromagnetic
Waves
Reporting Topics: Properties of Mechanical and Electromagnetic Waves
Knowledge:
In addition to score 3.0 performance, the student demonstrates in-depth inferences and
applications that go beyond what was taught.
3
Students demonstrate they have developed an understanding of:
Proficient
 the relationship between energy, frequency, wavelength and amplitude
 how waves transfer energy
2
Students will recognize or recall:
specific vocabulary such as:
 wavelength, frequency, amplitude, crest, trough, longitudinal, transverse, vibration,
medium, compression, rarefaction, wave speed, hertz, electromagnetic waves,
mechanical waves (such as sound)
basic knowledge such as:
 waves transfer energy
 recognize the wavelength, amplitude, crest and trough of a transverse wave
 recognize the compressions and rarefactions of a longitudinal wave
 recognize that wave speed is affected by the media through which they travel
Assessments:
8th Grade Science Unit 2: Waves, Sound & Light 15-16
Interactions of
Waves
4
Reporting Topics: Interactions of Waves
In addition to score 3.0 performance, the student demonstrates in-depth inferences and
applications that go beyond what was taught.
3
Students demonstrate they have developed an understanding of:
Proficient
 the various wave interactions and are able to discuss examples of each (transmission,
absorption, reflection, refraction, diffraction, scattering and interference)
o how the color of an object is perceived (transmission and reflection)
 the relationship between visible light wavelength and frequency (how color of light is
determined)
 differences among the wavelengths and frequencies of the electromagnetic spectrum
2
Students will recognize or recall:
specific vocabulary such as:
 transmission, absorption, reflection, refraction, interference, scattering, transparent,
translucent, opaque, diffraction, electromagnetic spectrum
basic knowledge such as:
 the difference among transparent, translucent and opaque
 the ranges of the electromagnetic spectrum (radio waves to gamma waves)
 the visible spectrum
8th Grade Science Unit 2: Waves, Sound & Light 15-16
Suggested Instructional Resources
Learner Objectives
Topic
Textbook
Resources
Labs
PBL Ideas
(projects)
Web Resources – websites or
resources on
http://science.dmschools.org
I can distinguish between
types of waves.
Properties of Mechanical and Electromagnetic
Waves
I can describe the
characteristics of waves.
I can compare and contrast
sound and light waves.
I can compare and contrast
transmission, absorption,
reflection, refraction and
scattering of waves.
I can explain how the color
of an object is determined.
I can trace the route light
must take in order to be
seen and the role the eye
plays in vision.
Interactions of Waves