Easy DIY Baking Soda Slime Recipe: Fun and Mess-Free!

Baking Soda Slime Recipe: Easy and Fun Science Experiment for Kids

baking soda slime recipe

Baking Soda Slime Recipe

If you are looking for a simple yet exciting science experiment to do with your kids, look no further than the baking soda slime recipe. Slime-making has become a popular trend among children, and its a fantastic way to teach them about chemical reactions and the properties of different materials. In this article, we will guide you through the step-by-step process of making baking soda slime, explain its science behind, and provide some tips and variations to make it even more enjoyable. So, lets dive into the slime world and unleash our creativity!

What is Baking Soda Slime?

Baking soda slime, also known as oobleck or goop, is a non-Newtonian fluid created by combining simple household ingredients. The primary ingredients are baking soda and water, with optional additions like glue, food coloring, and contact lens solution. When mixed together, these ingredients undergo a fascinating chemical reaction that transforms the mixture into a substance with intriguing properties, such as being both a solid and a liquid at the same time. This unique characteristic allows the slime to be stretched, pulled, and even bounced!

Materials Needed

Before we begin our slime-making adventure, lets make sure we have all the required materials. Gather the following:

  1. Baking soda (sodium bicarbonate)
  2. Water
  3. Glue (optional)
  4. Food coloring (optional)
  5. Contact lens solution (optional)
  6. Mixing bowl
  7. Measuring cups and spoons
  8. Spoon for stirring
  9. Disposable gloves (to keep your hands clean)

Step-by-Step Guide to Making Baking Soda Slime

baking soda slime recipe

Now that we have everything we need, its time to get our hands slimy! Follow these simple steps to create your own batch of baking soda slime:

1. Prepare the Baking Soda Mixture

In a mixing bowl, combine 1 cup of baking soda with ½ cup of water. Stir the mixture thoroughly to ensure that the baking soda is completely dissolved. If you want colored slime, add a few drops of food coloring to the mixture and mix it well.

2. Optional: Add Glue for Stretchier Slime

If you want your slime to be stretchier and more elastic, you can add half a cup of glue to the baking soda mixture. Mixing glue with baking soda creates a cross-linking chemical reaction that enhances the slimes texture. Stir the mixture until the glue is fully incorporated.

3. Activate the Slime

Now, its time to activate our slime. If you added glue, start pouring a small amount of contact lens solution into the mixture while stirring continuously. Add the solution gradually until you achieve the desired consistency. The slime should come together and separate from the sides of the bowl.

4. Knead and Play!

Once the slime has formed, take it out of the bowl and knead it with your hands. This will help remove any excess liquid and give the slime a smoother texture. Start stretching, squishing, and playing with your slime, marveling at its unique properties and characteristics.

The Science Behind Baking Soda Slime

baking soda slime recipe

Baking soda slime is an excellent example of a chemical reaction and a non-Newtonian fluid. When baking soda (sodium bicarbonate) reacts with water, it releases carbon dioxide gas, forming small bubbles. The gas bubbles get trapped within the sticky matrix of glue or the solution created from the contact lens solution and baking soda. This structure allows the slime to have both solid and liquid properties, making it malleable and able to change its shape and flow.

Moreover, the non-Newtonian behavior of the slime means that its consistency can change depending on the amount of force applied to it. Applying gentle pressure allows it to flow like a liquid, while applying quick and stronger force allows it to behave more like a solid. This interesting property is what makes playing with baking soda slime so fascinating and fun!

Tips and Variations

baking soda slime recipe

Here are some tips and variations to enhance your slime-making experience:

  1. Experiment with different ratios of baking soda to water to achieve varying slime textures, from runny to firmer.

  2. Add glitter or small beads to your slime for a sparkly or textured effect.

  3. Use different colors of food coloring to create a rainbow of slime.

  4. Store your slime in an airtight container or ziplock bag to keep it fresh and prevent it from drying out.

  5. For a scented slime, add a few drops of your favorite essential oil into the mixture.

Remember, the more you experiment and explore, the more youll discover about the incredible properties of baking soda slime!


Making baking soda slime is not only a fun and engaging activity for kids but also a great way to introduce them to basic scientific concepts. By creating their own slime, children can explore the wonders of chemical reactions and the properties of different materials. So, gather your materials, follow the simple steps provided, and let the slimy adventure begin!

FAQs (Frequently Asked Questions)

1. Is baking soda slime safe for children?

Absolutely! Baking soda slime is non-toxic and safe for children to play with. However, its always a good idea to supervise younger children and ensure they dont ingest the slime or any of its components.

2. Can I make slime without glue?

Yes, you can make slime without glue! Instead of glue, you can use other ingredients like liquid starch or laundry detergent, which will create a similar chemical reaction with the baking soda.

3. How do I clean up baking soda slime?

Baking soda slime can leave some residue on surfaces, but it is generally easy to clean. Using warm soapy water should remove any slime remnants effectively.

4. Can I store baking soda slime for later use?

Yes, you can store your baking soda slime in an airtight container or ziplock bag. However, the slime might lose its original texture over time, so its best to make a fresh batch for the best play experience.

5. Can I dye the slime using materials other than food coloring?

Certainly! While food coloring is a common and safe method, you can also explore natural dyes like beet juice or turmeric powder to give your slime a unique color. Just keep in mind that natural dyes might stain your hands or surfaces, so precautions are advised.

Now, go ahead and unleash your creativity with baking soda slime! Have fun experimenting, playing, and learning with this fascinating and squishy substance!

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