Frequently Purchased Together
- Contains a thermochromic color-changing dye
- Explore the science of building polymers
- Learn about heat sensitive materials and dyes
Our Slime-ologists Have Made an Exciting New Kind of String Slime that Is Heat-Sensitive!
Available in Magenta or Blue!
When the Spangler Labs team came up with String Slime, it was an instant hit. Now, you won’t believe your eyes as temperature changes the appearance of this special new kind of String Slime!
Just squirt the blue or magenta liquid into the bowl of Activator, and watch wiggly strings of slime appear right before your eyes! The special formulation holds a secret. When the string warms up to a certain temperature, it loses its color. The pigment in the slime is heat-sensitive. To bring back its original color, just put the string slime in cold water.
How does it work?
When you make String Slime, you’re learning about the science of polymers. The creative folks at Steve Spangler Science coined the term “String Slime” but the real name of this liquid is sodium alginate. Sodium alginate is a long chain of identical molecules called a polymer.
Make a science fair connection
All you need to do is identify and change a variable, or factor that can be altered, to create a memorable science fair project. For example: Find the quickest way to cool or heat the string slime to its color-changing temperature.
When It Comes to Cool Science Demonstrations, the Heat-Sensitive Strings are Pretty Awesome
Experience String Slime in a variety of new colorings, better reaction time, and slimier insides. In this batch of String Slime, you’ll get an exciting new color-changing variation that changes right before your eyes.
String Slime Works Through the Magic of Polymers
Although String Slime starts as a liquid, through polymerization (the formation of polymers), the liquid becomes a solid and looks just like a long string. Heat-Sensitive String Slime also features a thermochromic dye that reacts, quite colorfully, to changes in temperature. You get enough materials to make about 160 ft (49 m) of Heat-Sensitive String Slime!
What Does It Teach?
Young scientists will explore the science of building polymers by cross-linking long chains of molecules while also learning about thermochromic materials and dyes.
- 32 oz (1 L) of Blue or Magenta Heat Sensitive String Slime liquid
- 60 g (2.1 oz) of Activator Powder
- Blue measuring scoop
- 4 oz String Slime bottle
- Activity Guide
You get enough materials to make about 160 feet (49 meters) of Heat Sensitive String Slime!
String Slime works through the magic of polymers. Although String Slime starts as a liquid, through polymerization (the formation of polymers) the liquid becomes a solid and looks just like a long string. Heat Sensitive String Slime also features a thermochromic dye that reacts, quite colorfully, to changes in temperature.