Light and Sound
Light is a form of energy that travels in waves. A reflection occurs when light rays bounce off a surface, such as when you see your reflection in a mirror. Absorption is when an object takes in light wave. Refraction is when light bends moving from one medium to another. Sound is a type of energy that travels in waves that is caused by vibrations. Vibrations are movements made rapidly back and forth. Read More...
◂Science Worksheets and Study Guides Fourth Grade. Light and Sound
Study Guide
Light and sound 
Worksheet/Answer key
Light and sound Worksheet/Answer key
Light and sound Worksheet/Answer key
Light and sound Vocabulary/Answer key
Light and sound Vocabulary/Answer key
Light and sound Vocabulary/Answer key
Light and sound
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
PHYSICAL SCIENCE (NGSS)
Waves and their Applications in Technologies for Information Transfer
Students who demonstrate understanding can:
Develop a model of waves to describe patterns in terms of amplitude and wavelength and that waves can cause objects to move.