What if there were no electricity?
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What if there were no electricity?
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Print Prep
Activity Prep

In this lesson, students are introduced to electricity as a form of energy. In the activity, Build a Flashlight, students investigate how electrical energy requires a circuit and make their own mini flashlights from LEDs, button batteries, and strips of aluminum foil. Along the way, they’ll learn about the anatomy of a battery, begin to see how circuits work, and discover how handy an on-off switch can be.

Preview activity

COVID-19 Adaptations
Students can work solo
Digital worksheets available

Students at home
Each student needs: 1 battery, 1 LED, 1 index card, a sheet of aluminum foil (4”x12”), and stickers. Students also need the Flashlight Maker worksheet (printed or digital).
Number of students:
Flashlight Maker worksheet 1 per student
Scissors
1 pair per student
Aluminum Foil
4" per student
File Folder Labels (Stickers)
Masking tape will also work. We prefer stickers for ease of distribution in a classroom.
Details
4 labels per student
Index Cards (3x5)
1 card per student
Batteries (3V 2032 button)
Each student needs one battery. We suggest purchasing a few more in case some don't work.
Details
1 battery per student
LEDs
Each student needs at least one LED, but it's ideal to have more for additional experimentation. We recommend getting an assortment of colored LEDs.
Details
3 LEDs per student
Prep Instructions

We suggest students work in pairs. Homeschool students can work on their own.

Prepare Aluminum Foil

For each student, tear off a strip of aluminum foil that’s about 4 inches wide and as long as the roll (usually about 12 inches).

Teacher Note

If you purchase the batteries in advance, please read this document for how to safely store them.

Extensions
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