DIY Light-Up Greeting Cards

By Erin Mitchell

Create a circuit and light up your friend's face with this DIY Light-Up Greeting Card! You can find all of the supplies you need to bring this project to life at your local craft or office supply store.

How it Works:

Think of an electric circuit like a lazy river at a water park. Riders are like electrons and when they make their way all around the river, they make a complete circuit! The volume of water, or how much room the riders have to wade around in the river, is like the amps; and the jets in the water that propel the riders around are like the voltage.

With your greeting card, the physical circuit will be the copper tape, and the force propelling the electrons through the circuit is the voltage from the small button battery. Once the circuit is complete, it's like flipping a switch: your light will turn on!

Before You Begin:

Before we get started, test your LED to make sure that it works. To do this, stick the LED on the battery with the long leg of the LED on the "+" and the short leg on the "-". If the LED doesn't illuminate, first make sure you don't have the legs touching the wrong sides of the battery, then try a different LED. If the LED does light up, that means you're good to go!

What You Need:



-Copper Tape (with an adhesive back)

-LEDs (one per card)

-Small button batteries (one per card)

-Paperclips (one per card)