In this combined Grade 4/ 5 lesson, students will observe and understand how light is refracted through a medium of mass, such as water. Grade 4 students will leave the lesson with the knowledge and understanding as to why light refracts at various
angles depending on the medium it is projected through. Grade 5 students will leave the lesson with the knowledge and understanding as to why all matter has mass and takes up space/volume. Key questiosn that will be explored are: Why does the speed of light change depend on the material it passes through? How is the “refractive index” helpful to understand this? Why does the mass of matter take up space/volume?
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