Mix-up the Activator Solution and squirt your favorite String Slime™ color into the liquid. The instant the two liquids touch, you get solid String Slime. It’s that easy!

Explore the science of polymers with this exciting kit

No glue, no borax

Amazing fluorescent colors won’t stain your hands

Blue and Yellow String Slime™ colors – Mix to make green"

Explore the Science of Building Polymers by Cross-linking Long Chains of Molecules

Amazing fluorescent colors won’t stain your hands

This is slime like you’ve never seen before. No glue… no Borax… no messy mixing… just amazing! Just mix-up the Activator solution and squirt your favorite String Slime color into the liquid. The instant the two liquids touch, you get solid String Slime.
Remove the strings from the bowl and you’re ready to play. Snap the string in half to reveal the gooey center. Just dip the ends into the Activator solution to seal it back up.

What does it teach?

Explore the science of building polymers by cross-linking long chains of molecules. The process of making String Slime is faster and easier than the classic slime recipe and it happens the very second the two liquids mix. Truly amazing!

What age is this activity best suited?

This activity is great for all ages. Both String Slime liquid and the Activator powder is safe to use as directed with adult supervision. Use String Slime as an introduction to chemical changes for young children while older children will learn about polymer science through the process of cross-linking long chains of molecules together.

You Won’t Believe Your Eyes!

Best of all, String Slime won’t stain your hands. It’s safe to touch, twist, twirl and explore the science of polymers.

Use Under a Black Light!

Our special fluorescent colors will blow your mind under blacklight. Collect your favorite colors for the ultimate slime experience.

Instruction Card Included with 3 Experiments

Making String Slime
It’s All in the Squeeze
Color-Me-Green String Slime

What’s Included?

String Slime™ Activator Powder 0.35 oz (10 g)
Yellow, and Blue String Slime™ (3.4 fl oz. / 120 mL) each
1 Plastic Squirt Tube
1 Plastic Tank
Instruction Cards
Recommended ages 6+ with adult supervision.

Make Gallons of Fluffy Snow in Seconds

The original fake snow polymer!

Snow is a seasonal phenomenon, but it can’t be relocated inside for study and play, and - in some areas of the country - it won’t appear at all. So, when snow (and fun) is on the mind, let the kids devour hours of fun with one of these Steve Spangler Science Insta-Snow Powder Kits - delivering realistic, fluffy snow that can be dried out to reuse countless times. With just the addition of water, the liquid/insta-snow powder mix turns into a solid within seconds-no mixing required. A true wonder and learning asset for a multitude of settings and playtimes.

Insta-Snow isn't just a cool demonstration, educators have found great use in sensory tables for early childhood and chemistry for advanced sciences!

No matter what quantity of Insta-Snow you choose, you'll get all of the materials you need including mixing instructions and the scientific explanation. You're getting a "WOW" factor with a ton of scientific application. Recommended for children ages 4 and up with adult supervision.

What does it teach?
Explore the ever-changing science of polymers as students experiment with Instant Snow. Each Insta-Snow product comes with an activity guide with suggestions for science fair projects and fun ways to explore the science of polymers. Within seconds, the liquid/powder mixture turns into a solid and then erupts into a fluffy, white snow-like material (no mixing required). Watch in amazement as it instantly expands up to 100 times its original volume.

Why Does Snow Feel Cold to the Touch?
Since the snow is almost entirely made up of water, the water is bound to evaporate. The process of evaporation produces a constant cooling effect. That's why Insta-Snow is so much fun to touch!

Can You Reuse It?
The snow will start to dehydrate after a few days due to evaporation. Just spray the top of the snow with water and fluff the snow with your fingers to give it a fresh, fluffy look. You can also let the snow completely dry out to use it again. The dry form of Insta-Snow powder will last forever!

Instruction Cards Included with 4 Experiments!
From a Warm Liquid to a Very "Cool" Solid
The Handful-of-Magnificent-Snow Show
Dry Up and Drip On
Salt Polymer Destroyer

What's Included?
Insta-Snow® Powder 2.6 oz (75 g)
Plastic Tank
Instructions
Recommended ages 4+.
Adult supervision required. Do not ingest.

• The original fake snow polymer.
• Just add water to make gallons of white fluffy snow in seconds!.
• Leave the snow out to dry and reuse it again... and again.
• Activity guide included with 4 experiments!

Make Water Disappear Like a Magician!

Amaze your friends while learning about hydrogels.
As seen on the Ellen DeGeneres show, and also known as slush powder, Water Gel turns from a powder to a gel in just seconds. Sodium polyacrylate absorbs from 500-800 times its weight in water and is actually the secret ingredient that’s used to absorb “liquid” in baby diapers! An Activity Guide with lots of fun, hands-on polymer science tricks to play on your friends is also included. Recommended for children ages 6 and up.

How does it work?
When you add water to this superabsorbent polymer, it instantly turns from a liquid to a slushy solid.

What does it teach?
Water Gel is the perfect way to demonstrate how polymers work. The gel is a superabsorbent polymer that can help illustrate how farmers can save their crops in times of drought and what kind of material is in a baby diaper!

Super Absorbent Polymer Powder
Water Gel soaks up to 500 - 800 times its weight in water in seconds! It uses sodium polyacrylate – the secret ingredient used to absorb “liquid” in diapers!

Science Fair Connection
Turn Water Gel into a fun science fair project by simply identifying a variable (something that might change the outcome) in the experiment, then testing that variable, and correctly reporting the results.

Instruction Cards Included with 4 Experiments
The Amazing Disappearing Act
The Polymer Pencil Poke
Where’s the Water?
Maximum Capacity Challenge

What’s Included?
Water Gel polymer 2.6 oz (75 g)
Plastic Tank
Instruction Cards
Recommended ages 6+.
Adult supervision required. Do not ingest.

• Make water disappear like a magician
• This superabsorbent polymer powder soaks up 500-800 times its weight in water
• Turns from a powder to gel in just seconds
• Discover the secret powder used in diapers!

Squeeze your way into exploring the world of polymers with Shape Gel™

Create shapes with chemistry

Non-borax slime formula, non-glue, easy and safe to use!

Amazing fluorescent colors won’t stain your hands

Comes with 2 Goo Colors Blue and Yellow Shape Gel™ and Activator Powder

Time To Be Amazed!
Comes with 2 Goo Colors Blue and Yellow Shape Gel™ (3.4 oz) and Activator Powder! (20 g)

Combine the two liquids to create unique polymers
All you have to do is mix colors and design your shape. Then submerge into the Activator, and Voilá! You created your first polymer shape! Mix and match up to 16 different colors! This is a non-borax and non-glue slime formula that is safe and easy to use! Amazing fluorescent colors won’t stain your hands.

How does it work?
Making Shape Gel is a chemical reaction that makes a new solid substance (the “star”) by combining the two liquids. The scientific name for the gooey Shape Gel liquid is sodium alginate, and it’s full of very l-o-n-g molecules called polymers. The Activator Solution contains calcium which links together one long polymer chain to another long polymer chain in the sodium alginate. The instant these two liquids meet, the crosslinking process begins. This means that the molecules join to create long chains of molecules and form a sort of skin on the outside of the star where first contact is made, and then works its way inward. When the molecules bond, the long chains of molecules form and they appear to tighten or harden. This is what changes the Shape Gel star as it floats out of the mold. The crosslinking process pulls from the outside in, giving more of a “puffy or ball” appearance. As the crosslinking process continues, it causes the star to change as it pulls in the tips towards its midpoint.

Let’s work together to inspire the next generation of scientists and engineers.
At Steve Spangler Science, STEM is not just an acronym or a checklist of required subjects (science, technology, engineering, and math). Our STEM products encourage young scientists to create new and exciting experiences that foster the skills of collaboration, communication, critical thinking, and creativity.

Create Shapes With Chemistry
What other toys or crafty items could you mix with Shape Gel goo to create new and different creations?

Create a Puffy Starfish
Have some fun making a beachful of colorful, puffy starfish and show your artistic ability too! Over time, Shape Gel will dry out (dehydrate) and shrink. But, a very cool thing happens to Shape Gel stars as they dry.

Instruction Card included with 3 Experiments

• Getting Started
• Super Swirly Stars
• Puffy Starfish

What’s Included?

• Shape Gel™ Activator Powder 0.7 oz (20 g)
• Yellow, and Blue Shape Gel™ Goo (3.4 fl oz. / 120 mL) each
• 1 Plastic Star Shape Mold
• Instruction Cards

Recommended ages 6+ with adult supervision

Magic sand may look like ordinary sand… but just try to get it wet!

Magic Sand begins as normal looking sand, until it’s dyed and coated with a substance that repels water. This coating keeps the sand dry even after it has been dumped into a container of water. Build castles and other structures under the water, then simply pour the water off when you’re finished and the sand is still dry! You can use it for fun science experiments again and again! Colors vary.

How does it work?
Ordinary sand is free flowing and cannot form a structure that holds its shape. Because of its water-repellent properties, when Magic Sand is poured into water, it holds its shape and can even be molded into structures under water.

What does it teach?
Learn about the properties of water molecules and how hydrophobic products work. Students can experiment with Magic Sand and then ordinary sand and note the differences in water-repellent properties.

The possibilities are endless!
Steve Spangler’s Magic Sand is a hydrophobic polymer; sand that never gets wet! It can be used to build underwater sandcastles! Also, Magic Sand is a reusable science toy! When finished, simply pour the water off and let the sand dry! You can use it for science experiments again and again!

Learn about water molecule properties
Discover the differences between Steve Spangler’s Magic Sand and ordinary sand for a fun science experiment or lesson!

Instruction Card Included with 3 Experiments
What Makes Magic Sand Magic?
Waterproof Finger
Underwater Sandcastles

Recommended for ages 6+.
Adult Supervision Required. Do Not Ingest.

• It's a hydrophobic polymer! Yes, sand that never gets wet!
• Build underwater sand castles
• Explore the differences between Magic Sand with regular sand

What’s Included?

• Blue Magic Sand – 2.12 oz (60 g)
• Red Magic Sand – 2.12 oz (60 g)
• Yellow Magic Sand – 2.12 oz (6 0g)
• Clear Plastic Tank
• Instruction Cards

They Never Lose Their Amazing Color!

These multi-colored spheres are like jelly marbles!

I’m sure you’re thinking that after we brought you Jelly Marbles, Water Spikes, Water Cubes, and Water Jelly Crystals, we couldn’t possibly have another superabsorbent polymer up our sleeves… well, think again! Just when you thought polymers couldn’t get any cooler, let us introduce you to Colorful Growing Orbs! These multi-colored spheres are much like Jelly Marbles, but they never lose their amazing color!

For teachers, parents, grandparents & all-around science adults
We haven’t forgotten about the new STEM and STEAM initiatives you’ve been hearing about in our schools, bringing Science, Technology, Engineering, (Art), and Math together to make young scientists into real thinkers! Look what your young scientist integrated into the Colorful Growing Orbs activities.

How does it work?
These tiny orbs teach big lessons in color, light, and the importance that these thirsty pebbles can play in maintaining a healthy environment. Try drying them out to see how quickly evaporation can take over… and then use them again and again.

The Possibilities for Experimentation Are Endless…
Just drop the Colorful Growing Orbs in water to soak. Put them in one of our Baby Soda Bottles and observe how they grow to the shape of the test tube.

These Colored Spheres Are A Lot Like Jelly Marbles, However…
They never lose their amazing color. You can mix them, squish them, bounce them, and count them. but they will never fade!

Instruction Cards Included with 4 Experiments
The Shapes of Hydration
Vanishing Orbs
Magnificent Orb Magnifier
The Salt Effect

What’s Included?
Polymer Orbs 2.6 oz (75 g)
Plastic Tank
Instruction Card
Recommended ages 6+.
Adult supervision required. Do not ingest.

• The pebble-size spheres grow into colored jelly marbles after you soak them in water for a few hours.
• These colored spheres are like Jelly Marbles, but they never lose their amazing color.
• Explore the science of polymers.

You Won’t Believe Your Eyes!

These Jelly Marbles become invisible when submerged in water but grow almost 7 times their size!

Just add water and discover the magic! Place these tiny, solid spheres in water, and in just a little while you will have your own Jelly Marbles that absorbed over 150 times their weight in water. These superabsorbent water marbles are the newest craze around the Spangler Science offices! What starts out as a 3mm pebble, quickly becomes an approximately 20mm ball of jelly! Similar to our Water Jelly Crystals, these water beads absorb a lot of water, plus they maintain their spherical shape when they are done growing. Not only are these superabsorbent marbles fun, they teach a valuable lesson about the power of polymers.

Jelly Marbles are an example of amazing hydrogels
Hydrogels are superabsorbent polymers that are saving the environment. Whether you think they look like water marbles, water beads, or clear spheres, you’ll want to get your hands on these squishy, water-filled Jelly Marbles.

What does it teach?
Like all of our fun and fascinating polymer, or hydrogel, products, these tiny spheres, teach a big lesson in color mixing, light refraction, and the importance these thirsty pebbles can play in maintaining a healthy environment. The possibilities for experimentation are endless when you drop these spheres in water.

Fun For Anytime of the Year, Especially Halloween!
Unsuspecting Trick-or-Treaters will be surprised when they place their hands in a bowl of ooey, gooey “eyeballs”! Perfect for any Halloween party!

Watch Them Grow To the Shape of One of Our Baby Soda Bottles
Your young scientists will be surprised to see that the marbles maintain their spherical shape. Not only do these clear spheres absorb water, but they also absorb color to make them even more interesting!

Activity Guide Included with 5 Experiments
The Amazing Disappearing Act
2 Vanishing Jelly Marbles
Magnificent Jelly Marble Magnifiers
Really Cool Rainbow Marbles
The Salt Effect

What’s Included?
Jelly Marbles™ Polymer 2.6 oz (75 g)
Plastic Tank
Instruction Cards
Recommended ages 6+.
Adult supervision required. Do not ingest.

• Superabsorbent giant growing polymer beads
• Absorb 150 times their weight in water!
• Learn about hydrogels and how they’re used to help the environment
• Color your own marbles and learn about secondary colors!