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Fizzy Planet Art - Painting with Baking Soda & Vinegar

This activity is a fun way to learn more about space and chemical safe reactions with items you have around the house. Your child will be working on their understanding and observation skills while using problem-solving and logical reasoning to solve how the reaction happened.

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Get your child into space by creating planets that fizz!

Scientific reactions for toddlers are always fun and exciting when things happen that they weren’t expecting. This activity is an easy way to explore planets, but with a twist. Have your child paint with a premade mixture of baking soda and paint. While it’s drying, check out some stories about planets in space, paying extra attention to the textures of their surfaces. When their art is dry, go outside (if possible) with the artwork and a spray bottle of vinegar. Spray the art and watch your child’s reaction as the art begins to fizz!

✨Play for longer: Children usually find the fizzing reaction fascinating, so feel free to let them explore this over and over in a safe way.

📚 Books to explore:  8 Little Planets by Chris Ferrie, Hello, World! Solar System by Jill McDonald, There’s No Place Like Space and by Tish Rabe.

🦺 Stay safe: Make sure that there is no eye contact with the vinegar as it is being sprayed.


For this Activity you will need:

Black cardstock or cardboard 


Baking soda


Spray bottle 

Paint (white and 2 colors of their choice)

Plastic cups (3)

Plastic spoon


Learning Outcomes




Cause-and-effect exploration


Responding with joy to the predictable outcomes of exploration


Step 1:

Set up an area that can get messy.

Step 2:

Take 3 plastic cups and add a small bit of paint (1 tablespoon), using a different color for each cup.

Step 3:

Mix some baking soda in the paint (2 tablespoons) — it should be thick.

Step 4:

On the cardstock or cardboard, draw a large circle (the planet) with a marker.

Step 5:

Have your child paint inside the circle, encouraging them to use the 2 colors they chose. Then add white dots for stars around the circle.

Step 6:

Let it dry.

Step 7:

Once dry, spray it with vinegar and watch it fizz!

🎨Messy Alert!! This activity can be somewhat messy so expect some clean up after it’s done. If possible, try doing the fizzy part outside to help keep your place cleaner.

⬆️ For older preschoolers: Let them explore different shapes other than a circle as well as creating moons with different colours.

⬇️ For younger toddlers: Have your kiddo help with the spraying. The reaction will cause lots of excitement!

Playful Questions

What do you think will happen when we spray the vinegar? 

Do you think we can live on other planets?

What does that sound make you think of?

Do you think planets have a surface like that?

What planet do we live on?

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