How does light bend when it passes through glass or water? We can easily show this using laser pointers. Both reflection and refraction are easily seen. 
 
Questions Answered:
Light reflects when it hit the surface of a different substance. Light refracts when it enters a different medium at an angle. Light travels in straight lines.
 
Topics Addressed:
Refraction 
Reflection 
 
Learn to use scientific equipment:
Laser pointers
 
Materials Needed
Clear glass of water, laser pointers, milk
 
Preparation Time
order/gather supplies
 
NOTE: This activity is part of the Light, Optics, & Color Unit found here.
 

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

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Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.

 

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