Super simple to make and awesome for kids to play and learn! Make melting castles baking soda science for your Frozen loving fan! Inspired by the movie, our melting castles is terrific homemade science and sensory play.

Melting Castles Baking Soda Science Activity

Foaming, Fizzing, Melting Icy Castles Play

This melting castles baking soda science activity is loads of sensory fun and learning! Loosely based off our favorite movie, Frozen too! He took one look at it and said we were melting Elsa’s castle. We love all sorts of baking soda science activities and enjoy them all year-long. It’s one of our all time classic science experiments .  A few simple kitchen cupboard ingredients and you have great science sensory play! We are participating in the 31 Days of Sensory Play Challenge with Adventures of Adam!

Melting Castles Baking Soda Science Play 

Last year, we tried a fun baking soda science snowflake search activity and had lots of fun! We are starting early with snowman this year since my son is eagerly awaiting the first real snow! Make sure to see our melting snowman baking soda science too!

Supplies Needed:

• sand castle molds
• baking soda
• vinegar
• water
• glitter 
• food coloring 
• baster or eye dropper

To Make Melting Castles: Add water to a good load of baking soda just until you get a crumbly but pack-able dough. It shouldn’t be runny or soupy. Mix in a load of glitter to make it sparkly! Pack the mixture into sand castle molds and pop in freezer until solid. I do recommend using small molds unless you want multiple children working together. I used one box of baking soda to fill our larger castle mold. You will want to run luke warm water around the outside of the container to help release the castle!

Melting Castle Baking Soda Science Sensory Play

Winter, science, sensory, and fine motor play all in one easy activity using some basic kitchen cupboard ingredients! Use a turkey baster or an eye dropper or an even a small scoop or squeeze bottle. Really, whatever you have in the kitchen will work. Observe the awesome chemical reaction between baking soda and vinegar! Hint: I mix a little warm water into the vinegar to help the melting process!

He loved that they looked like castles, melting castles! He also loved to feel the coolness and the fizziness!

You could add just about anything to the melting castles or hide surprises in the middle like inexpensive gems!

Simple icy, melting castles with a science twist! Plus glitter!

Enjoy playful, hands on learning and sensory play with our melting castles activity!

 Make sure to check out all the awesome ideas for the 31 Days Sensory Play Challenge

More Awesome Frozen and Winter Sensory Ideas To Check Out