Simple Electronics for STEM Education

Illuminated
Jellyfish

Party Trick Circuit

Banner01.jpg

RGB Jellyfish Teaser

Tip: If videos on this site are unavailable, refresh the page.

 

Materials

 What you need

  1. thin translucent paper (not to sturdy)

  2. LED (RGB slow fade)

  3. button cell

  4. paper clip

  5. clothespin

  6. transparent tape

 

Preparation - Test Your LED

Things to remember

  • LEDs only work in one direction.

  • LEDs have a longer leg. It has to point to the plus side of the button cell.

  • You can use any LED for this project.


Step 1 - Form The Body

Steps:

  1. Grab the middle.

  2. Bring all corners to one side.

  3. Squash the paper.

  4. Inflate the jellyfish body. Make it as big as possible.

  5. Grab the lower part and wrap the body around your fist.

 

Step 2 - Form The Outer Tentacles

Steps:

  1. Cut the paper and separate the four corners.

  2. Twist the corners to form four tentacles.

  3. Move the tentacles to the outside of the jellyfish body.

  4. Model the jellyfish to your liking.

 

Step 3 - Make The Inner Tentacles

Steps:

  1. Prepare 2 or 4 long strips of transparent paper.

  2. Twist the paper strips to form long tentacles.


Step 4 - Attach the LED

Steps:

  1. Add the LED to the button cell (longer leg to plus).

  2. Clamp both using the clothespin.

  3. Add the long tentacles using transparent tape.

 

Step 5 - Finish Your Jellyfish

Steps:

  1. Bend a paper clip straight and attach it to the clothespin using transparent tape.

  2. Poke the paper clip through the jellyfish body and make a hook.

Make sure the paper clip does not slip underneath the transparent tape.


Tips for teachers:

  • I usually show how to form the jellyfish body live in class. For the other steps, the videos are better suited.

  • Videos restart automatically, so you can move around the room while the video continues to play.

  • On low bandwidth, you can also right-click on a video and select 'Loop' to loop the video without reloading it.

  • I like to hover the mouse over the play button to keep the progress bar visible.