How To Make Awesome Summer Watermelon Slime

Create This Watermelon Slime Recipe Using Only 3-Ingredients-Clear Glue, Baking Soda, and Contact Solution. An Awesome Activity For Summer Fun!

Summer is the perfect time to get a little creative and a lot messy, and what better way to entertain the kiddos (and yourself) than by making some Watermelon Slime?

It’s easy, inexpensive, and a super fun sensory play activity. Plus, it’s the perfect way to bring those summer vibes into your playtime without too much fuss or mess.

Why Make Watermelon Slime?

There’s something magical about DIY slime like this Watermelon Slime. First, you control all the ingredients. No hidden chemicals or mysterious additives. Plus, it’s a fantastic hands-on summer sensory activity that combines fun and learning.

But the best part? DIY homemade slime is endlessly customizable! You can color it with bright red food coloring, add mini black pom-poms or black beans as watermelon “seeds”, and even toss in a few drops of watermelon-scented oil for an extra sensory experience. Your imagination is the only limit.

Why Seasonal Activities Are Awesome

Seasonal activities are a fantastic way to mark the changing seasons and get kids excited about different times of the year. They create lasting memories, and it’s something the whole family can look forward to each year.

Whether you’re hosting a summer playdate, having a watermelon-themed party, or just looking for an afternoon project, a good seasonal activity always adds a little extra fun to the mix.

The Best Watermelon Slime Recipe

What You’ll Need

This watermelon slime recipe is a twist on our classic Clear Slime Recipe, which is a hit all year long! You’ll need the following:

• 1/2 cup Elmer’s Clear Glue
• 1/2 cup Warm Water
• 1/2 teaspoon Baking Soda
• 1-2 tablespoons Contact Lens Solution (make sure it contains boric acid or sodium borate): We used Bauch+Lomb Renu.
• Red Food Coloring
• Dried Black Beans or Pom-Pom Balls (for watermelon seeds!)
• Optional: Glitter for extra fun!

Instructions

1. Mix Your Baking Soda and Water

In a separate small bowl, dissolve 1/2 tsp baking soda into 1/2 cup warm water. Be sure the baking soda dissolves completely and then let the mixture cool slightly. This ensures you won’t get a sticky or runny slime later on.

2. Add Glue

Add 1/2 cup clear glue to a mixing bowl.

3. Combine Glue and Water Mixture

Slowly add the water and baking soda mixture to the clear glue in the mixing bowl. It’s important to stir gently so that you don’t create too many bubbles. Fewer bubbles in this step means clearer slime in the end!

4. Add Color!

Now’s the time to make your slime look just like watermelon! Add a few drops of red food coloring and mix well. You can make it as vibrant as you like! Now’s the time to add some glitter of you want the slime to sparkle!

5. Add Contact Solution

Slowly stir in your contact lens solution (start with about 1 tablespoon). You’ll notice the mixture starts to firm up and pull away from the sides of the bowl.

If it’s still too sticky after mixing, just add a little more contact lens solution, a little bit at a time. Be careful not to overdo it though, or you might end up with rubbery slime instead of that smooth, stretchy texture you’re aiming for.

6. Knead the Slime

Time to get hands-on! Add a couple of drops of contact solution to your hands and knead the slime in your hands for a few minutes. Kneading helps the slime become less sticky and gives it that perfect stretchiness.

If it’s still a little too sticky, just keep adding tiny amounts of contact solution until it reaches the right consistency.

7. Add the Watermelon Seeds!

To complete the watermelon look, mix in a small handful of dried black beans or mini black pom-poms to act as the “seeds.” This adds a fun texture and makes it even more visually exciting for kids!

Tips and Tricks For The Best Watermelon Slime

Too Sticky?

If your slime is sticking to everything, add just a few drops of contact lens solution and keep kneading. Be cautious not to add too much at once. Clear glue slime is naturally firmer than white glue slime, so it’s all about finding that perfect balance.

Cloudy Slime?

It’s completely normal for your slime to look cloudy right after mixing. If you mixed it too quickly or squished it too much while playing, that introduces more bubbles into the slime. No worries! Just let the slime sit in an airtight container for a few days and the bubbles will work their way out.

Choose the Right Contact Lens Solution

Check the label of your contact lens solution to ensure it contains boric acid or sodium borate. This is the key ingredient that activates the slime. We used Bauch+Lomb Renu brand, and it worked really well, but the amount of boric acid can vary between brands. If your slime isn’t coming together as expected, try adjusting the amount of contact solution.

How to Store Your Watermelon Slime

Once you’ve perfected your Watermelon Slime recipe, it’s important to store it properly so it lasts as long as possible. Keep your slime in an airtight container when you’re not playing with it. This will prevent it from drying out. This slime recipe can last several weeks depending on how much you play with it.

If the slime starts to feel too firm after a while, you can knead in a tiny bit of water to soften it up again.

Get Ready for Summer Fun!

Now that you’ve got the ultimate Watermelon Slime recipe, it’s time to make this summer extra fun! Whether you’re crafting with your kids, hosting a summer party, or just looking for a fun DIY, this homemade slime is a surefire hit.

Ready to make your own Watermelon Slime? Let me know how it turns out in the comments.

Happy Summer!