Holding a conversation underwater has its challenges. Sound and light waves can travel in different mediums, but it affects their waves. The video explains the process of refraction and diffraction and how it relates to energy waves. 

Concepts

angle of refraction, refraction, light refraction, diffraction, sound waves

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Additional Tags

science

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Instructional Ideas

• Best if used as a review of refraction and diffraction or as a quick opener
• Post video as a reference for absent pupils or those needing extra instruction

Classroom Considerations

• Video must be watched multiple times for learners to understand each concept completely, so allow class time to do this
• The 14th lesson in a series of 49

• This video is hosted on YouTube

Pros

• Uses humor during the video as entertainment
• Provides specific examples for reference

Cons

• The speed of the video makes it difficult to grasp all the information in depth