Science of the Electric Grid – Bell Ringer
Summary
The Science of the Electric Grid bell ringers prompt students to connect their daily reliance on electricity to the larger system that generates and delivers it. Through questions about power outages, energy delivery, and grid complexity, students begin developing systems-level thinking about generation, transmission, distribution, and reliability.
These discussion prompts help surface prior knowledge while preparing students for deeper exploration of grid infrastructure and resilience. This activity pairs well with the full Science of the Electric Grid lesson, where students analyze how the grid operates as “the world’s largest machine” and what happens when part of the system fails.
Imagine waking up to find that nothing in your home that uses electricity works for a full day. What three things would affect you the most?

List three things in your daily life that depend on electricity, and explain how the energy needed to power each one is delivered to you.

The electric grid is sometimes called “the world’s largest machine.” Explain why it needs to be so complex, and what could happen if part of it fails.
