- Pebble-sized crystals that grow to 300 times their weight!
- Learn about the environmental benefits of hydrogels
- Explore superaborbent polymers, color mixing, environmental sciences, and more!
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- Pebble-sized crystals that grow to 300 times their weight!
- Learn about the environmental benefits of hydrogels
- Explore superaborbent polymers, color mixing, environmental sciences, and more!
These Amazing Pebble-sized Polymer Crystals Mysteriously Grow into Huge Pieces of Gel-like Material!
Just add water!
In fact, these crystals absorb 150-300 times their weight in water! Because of their incredible thirst, they’re even used to reduce the amount of water needed to water crops and gardens during years of drought! Included with each package of crystals is an activity guide with lots of fun ideas for science projects. Water Jelly Crystals are an example of amazing hydrogels… superabsorbent polymers that are saving the environment. You can also color them for amazing results!
How does it work?
Soak the crystals in water and see how fast they absorb the water! In just a few minutes you’ll have a huge bowl of icy looking crystals, only they’re not cold! Dry them out on a paper towel, and you can use them again!
What does it teach?
Discover how polymers perform very important functions in everyday life. Sometimes referred to as hydrogels, they’re used in everything from baby diapers to environmental cleanup materials! Aside from their environmental and industrial uses, superabsorbent crystals are a great way to teach kids about color mixing and light!
How Long Do They Take to Grow?
The crystals grow in less than a day, so if you throw them in water before your students come to class, they should be ready for your little scientists to play with after lunch.
Is This What They Put in Flowers?
INDEED!! Using jelly crystals will help to reduce the amount of watering that you will need for your plants during the planting season.
What Temperature Should the Water Be?
Through all of our rigorous testing, we found that they crystals grow better in warmer water than they do in cold.
What’s Included?
- Water Jelly Crystals in the selected color and sizing
- All of our kits come with a Science Activity Guide
Sizes Available:
- 40 g (1.4 oz) – 4 pack
- 100 g (3.5 oz) – Clear
- 227 g (8 oz) – 3 pack
- 454 g (1 lb) – Clear
- 2.27 kg (5 lbs) – Clear
Frequently Asked Questions
In the color packs, can I pick the colors?
No, the packs are created with color mixing in mind. Our clear crystal packs are limited to being clear. The three and four packs both come with the primary colors – perfect for color mixing! The four pack does include clear as well in case you’d like to try your hand at coloring them yourself.
How long do they take to grow?
They grow in less than a day, so if you throw them in water before your students come to class, they should be ready for your little scientists to play with after lunch.
Is this what they put in flowers?
INDEED!! Using jelly crystals will help to reduce the amount of watering that you will need for your plants during the planting season. For additional information about planting with Jelly Crystals – check out our lab on the matter!
What temperature should the water be at?
Through all of our rigorous testing, we found that they crystals grow better in warmer water than they do in cold.
Safety Information
Customer Reviews
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Call: 303-798-2778
Toll Free: 800-223-9080
Monday – Friday
7:00 am – 5:00 pm (MST)
Steve Spangler Science
Denver Office
7901 Southpark Plaza, Suite 106
Littleton, CO 80120
Film Canister Rocket Launcher
Dom –
If you want them to have color put some food coloring in them When you soak them
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Question
Mayuri –
Do these crystals help in controlling soil erosion??
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lisabrooks –
That’s a great question. I think they could help. Since the purpose of the crystals is to hold on to the water, it will help to keep the ground somewhat wet and less like to be blown away on windy days, depending on how much you use. To be fair, we have not tried this ourselves. It’s a great experiment, though!
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walkthetalk16 –
If you use it in a bathtub or a sink would it cause it to clog up? Also the fizzes would it cause Staining in the bathtub or sink?
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Question
Jennifer Venters –
How many kg of unexpanded crystals would i need to fill a box that was a meter squared (expanded)?
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lisabrooks –
Our best guess is 100 pounds.
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