Conversation Hearts Goop! Some messy gooey Valentine’s Day fun! These candy hearts make for perfect Valentine’s early learning play! We have used them for a quick color sorting game, observation science, and in our love potion #9! This time we made a great science sensory activity of goopy candy heart slime or sometimes called oobleck!
Goop is a pretty amazing sensory experience! Is it a liquid or a solid? Or is it Both?!
Oobleck is what is called a non-Newtonian Fluid. When pressure is exerted on it like squishing it or scooping it up, it acts like a solid. When there is no pressure exerted on it, it flows like a liquid. Scoop it up with a spoon like a solid and watch as it slowly melts off the spoon like a liquid. Amazing!
Items Needed for Conversation Hearts Goopy Slime:
- Cornstarch
- Water
- Conversation Hearts
That’s it. Nothing extensive or complicated. Just two simple items that most of you probably already have at home!
How to Make Candy Hearts Goopy Slime:
{Printable recipe below}
To make conversation hearts slime mix a 2:1 ratio of cornstarch to water: 2 cups cornstarch, 1 cup water.
It should not begin to crumble like crunchy foam sensory dough and it shouldn’t be a runny liquid that cannot hold any shape.
Transfer to a kid’s crafting tray or shallow bowl for exploring and playing. Add your candy hearts and tools. Get set for some cool science!
Oobleck can be a pretty messy sensory play and is great for scientific exploration. Adding in the conversation hearts is an easy way to make this fun for Valentine’s Day, but truthfully goopy slime is perfect to play with year round!
Conversation Hearts Oobleck

Oobleck is what is called a non-Newtonian Fluid. When pressure is exerted on it like squishing it or scooping it up, it acts like a solid. When there is no pressure exerted on it, it flows like a liquid. Scoop it up with a spoon like a solid and watch as it slowly melts off the spoon like a liquid. Amazing!
Ingredients
- 2 Cups Cornstarch
- 1 Cup Water
- A handful of Conversation Candy Hearts
Instructions
- Mix the water and cornstarch until you have a consistency that isn't pure liquid but also isn't crumbling.
- Add in the conversation hearts.
- Pour into a shallow dish.
- Play!
Notes
Cookie cutters, spoons, scoops, and bowls make for great toys for this activity!
Nutrition Information:
Serving Size:
1 gramsAmount Per Serving: Unsaturated Fat: 0g
KEEP READING!
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