Tween Scene: Galaxy Jars

Hello everyone! I hope you are enjoying the hot summer weather! What are some activities you like to do in your free time? Art is a fun and creative way to express your individuality and your interests. Whether you like to paint, draw, or sculpt with modelling clay, it is a relaxing and enjoyable way to spend your time. 

Galaxy Jars

This is a fun activity and looks fantastic. There are many websites that provide information on how to create your own jar. I used Ontarian Librarian’s site as a reference. Check it out!


  • Mason jar or other clean jar
  • Different colours of tempera paint 
  • One bag of cotton balls
  • Water
  • A 1/4 cup measuring cup
  • Tablespoon measuring spoon
  • Plastic cup
  • Popsicle stick or plastic spoon
  • Glitter, stick-on gems (optional)


  1. The first third of the jar will be filled with cotton balls. Take a handful of cotton balls and pull them apart. Place them in the jar. If you do not want to pull the balls apart that is fine.
  1. Use a spoon or popsicle stick to push on the balls.
  2. Select a paint colour. Pour two tablespoons of paint into a plastic cup. Add 1/4 cup of water to the cup. Use a plastic spoon or popsicle stick to mix.
  3. Add glitter if you wish.
  4. Pour the mixture into your jar. Press down on the cotton balls to absorb the paint. However, if you want white spaces on the cotton balls, that is fine!
  1. Add a new layer of torn cotton balls to the next third of the jar.
  2. Mix two tablespoons of paint, 1/4 cup of water, and glitter. Do you want a new colour, a mix of two colours, or a lighter/darker version of the first colour?  
  3. Pour the paint mixture into the jar and use a utensil to press down on the cotton balls to absorb the paint.
  4. Repeat steps 5 to 7 for the final layer.
  5. If you choose, add stick-on gems to the lid of your jar.

Turn the Page

If you enjoyed this activity with a mason jar, here are two books to give you more ideas! 

Mason Jar Crafts for Kids by Linda Braden

What will you make today? There are 25 fun activities to create to give as gifts, or for you to keep. Request this book from the library.

Mason Jar Creations by Alix Wood

A terrarium and a snow globe are just two of the projects you will discover! Request this book from the library.

Your Turn

I would love to hear how your Galaxy Jars turned out! Let me know in the comments below, and email your photos at to display your creations.


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