Sound and Light I
One important difference between sound and light is that sound can only travel through a solid, liquid or gas. Sound can not travel through a vacuum. For example, sound can not travel through outer space. Light on the other hand, can travel through a vacuum. This topic explores the electromagnetic spectrum.
Day 1 – Introduction
- Student Work Packet – Topic 31
Day 2 – Virtual Textbook
3:47 Why do mirrors flip horizontally (but not vertically)?
3:51 Nature of Light
3:55 What is Light? Maxwell and the Electromagnetic Spectrum
Visible light is only a very small portion of the electromagnetic spectrum. For example, x-rays and radio waves are also on the spectrum. Some teachers introduce the entire electromagnetic spectrum all at once. Other teachers introduce concepts of visible light first – then the other parts of the spectrum.
- Position A: The best way to learn about the electromagnetic spectrum is to introduce the entire spectrum first – then show how visible light is part of the spectrum.
- Position B: The best way to learn about the electromagnetic spectrum is through visible light (such as a rainbow) – then introduce the other parts of the spectrum.
Standard Daily Material
- Day 1 – Standard material – introduction day
- Day 2 – Standard material – reading day
- Day 3 – Standard material – make a presentation
- Day 4 – Standard material – give a presentation
- Extra! – Enrichment and remediation options
Other Topic Specific Resources
- Science & Engineering Practice: Ask questions and define problems.
- Cross-Cutting Concept: Energy and Matter: Flows, cycles, and conservation.