Paper Circuit Card for Kids

What are Paper Circuits?

Paper circuits combine the basics of electronics with creative hands-on crafting for a fantastic STEAM project. This project teaches kids about simple circuits, conductive materials like copper tape, and the flow of electricity, while adding a touch of art. 

Understanding how an electronic circuit works, including the role of a power source like a coin cell battery, helps kids better understand the world around them. Paper circuits are a low-voltage, beginner-friendly engineering project, making them an excellent introduction to electronics and STEM education.

💡Find more Electrical Engineering Activities here. Learn more about how to make a simple circuit with bread ties and aluminum foil.

Grade Level Recommendation: This project is ideal for grades 3-8. Younger kids (grades 3-5) will enjoy the guided crafting, while older kids (grades 6-8) can explore the science behind circuits and electricity. It’s a fun makerspace project or STEM lab addition.

Paper Circuit Card Supplies:

• Cardstock or thick paper
• Art supplies if designing your own card
• 1/4 inch width Copper tape (preferably with conductive adhesive)
• LEDs (small, 3mm or 5mm)
• Coin cell batteries (CR2032)
• Clear tape or scotch tape
• Scissors
• Hole punch (optional for LED placement)
• Printable template (optional)
• Binder clip (optional, to hold the battery in place)

🛑 Adult supervision is recommended for all electricity and circuit projects.

How to Make a Paper Circuit Card

Design Your Card: Draw or print a design on your cardstock or use our printable template if desired. Ideas include light bulbs, hearts, stars, or anything that could incorporate a light.

Mark the LED Placement: Use a hole punch or scissors to make a small hole where the LED light shines through.

Prepare the LED: Identify the positive, longer lead and negative, shorter lead of the LED. Insert the LED through the hole, ensuring the leads are accessible on the back.

Lay Out the Circuit: Use pieces of copper tape to create a path for electricity. Smooth lines and continuous pieces of tape ensure strong connections. One path will connect to the positive lead of the LED and another to the negative lead. These paths should lead to where the battery will be placed.

Attach the Battery: Place the coin cell battery with the positive side of the battery facing up. Secure it with tape or a binder clip, but make sure the copper tape contacts the battery.

Complete the Circuit: Fold or press the card so the copper tape connects to both sides of the battery. The LED should light up when the circuit is complete!

Paper Circuit Science Information

Electricity flows through circuits, which are complete pathways made up of a power source, conductive materials, and a load (like LEDs). In this activity, students will learn key concepts:

Key Terms

• Conductor: A material that allows electricity to flow, like the copper tape used in this activity.
• Insulator: A material that blocks electricity, such as paper or plastic.
• Circuit: A complete loop for electricity to flow.
• Trace: The pathway created by copper tape that guides the flow of electricity.
• Short Circuit: A “shortcut” where electricity bypasses the LED or other components, stopping it from working.

How the Paper Circuit Card Works

1. Power Source: The coin cell battery pushes electricity through the circuit.
2. Pathway (Traces): The copper tape forms a complete loop, guiding electricity through the maze.
3. LEDs: Light-emitting diodes (LEDs) glow when electricity flows through them. They only work in one direction, so their legs must be connected correctly:
   • Long leg: Positive (connects to the positive trace).
   • Short leg: Negative (connects to the negative trace).

What Kids Learn!

• Electricity Flow: Electricity moves in a closed circuit. Breaks or gaps in the trace stop the flow.
• Short Circuits: If copper tape touches directly and bypasses the LED, it creates a short circuit, and the LED won’t light.
• Conductors and Insulators: Students can explore which materials allow electricity to flow (conductors) and which block it (insulators).

Free Electrical Circuit Diagram and Worksheets

Grab this free guide for simple circuits for kids here or click below.

Paper Circuit Card Extensions Activities

• Testing Materials: Add different objects (e.g., foil, paper, rubber bands) to see if they are conductors or insulators.
• Maze Design: Challenge students to design their own circuit mazes with multiple LEDs and paths.
• Troubleshooting: Experiment with flipping LEDs, creating breaks in the trace, or intentionally causing short circuits to learn how to fix them.
• Parallel Circuits: Add more LEDs to explore how parallel circuits work and compare their brightness to a single circuit.
• Series Circuits: Experiment with connecting LEDs in a series to observe changes in brightness.
• Circuit Art: Create a larger piece of art with multiple light-up elements, such as a cityscape with glowing windows.
• Try Conductive Paint or Ink: Use conductive ink pens to draw the traces instead of using copper tape.

Creative Ways to Use Paper Circuits:

• Greeting Cards: Perfect for birthdays, holidays, or Valentine’s Day.
• Bookmarks: Create a light-up bookmark for nighttime reading.
• Posters: Design an interactive poster with glowing elements, like constellations or fireflies.
• Origami: Combine circuits with folded paper designs for glowing butterflies or stars.
• STEM Projects: Use paper circuits to demonstrate how electricity works in science classrooms or maker spaces.