Lights, Sounds, and Communication! Check out my First Grade Lessons Bundle with all the NGSS Standards covered:
1-PS4-1. Plan and conduct investigations to provide evidence that vibrating materials can make sound and that sound can make materials vibrate.
1-PS4-2. Make observations to construct an evidence-based account that objects in darkness can be seen only when illuminated.
1-PS4-3. Plan and conduct investigations to determine the effect of placing objects made with different materials in the path of a beam of light.
1-PS4-4. Use tools and materials to design and build a device that uses light or sound to solve the problem of communicating over a distance.
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