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Flubber is seriously one of my favorite mediums to present in my classroom. Everyone loves flubber because it has such a unique feeling and behaves like no other medium. It moves like it’s name. It’s a little squishy, bouncy, stretchy. There is a feedback sensation when you squeeze it. You can chunk it up with your fingers or a knife and if you leave it alone for a minute it will soften back down into a nice puddle like pancake.

Flubber Recipe

This recipe makes enough for 3-4 kids. I teach 6-8 kids at a time so I double the recipe. Merry flubber making.

1. Mix 2 cups water and 1 ½ cups Elmers glue in a big bowl.
2. Add a squirt of liquid water color and then stir it up.
3. In a separate small bowl mix together: 1 cup water and 1.5 TBS Borax.
4. After it’s completely dissolved, pour the Borax mixture SLOWLY and A LITTLE AT A TIME into the glue and water mixture. Pour a little, mix it a little, pour a little, mix a little. Mix with your hands or a sturdy wooden spoon. The consistency is slimy at first but as the mixture blends it stiffens.
5. Store it in an airtight container or ziploc for a few weeks.

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For this project I decided to give it a Halloween twist by hiding fun little creatures and characters under the flubber. I store my flubber in an airtight container in between play. I pull it out in chunks and give it about 15 minutes to full settle onto a tray before I hand it out to students to explore. Above and below are before and after pictures of setting up the creature treasure hunt in the flubber.

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My adventurous students went straight into the flubber with their hands to pull out the hidden treasures. Others were more cautious using scissors or safe clay tool knives.
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This was the first time ever that I did not dye the glue and instead kept the color white. I thought it would work fun with the Halloween theme and be a good background for all the critters. You can also use Gel Glue for a translucent flubber which would look more like slim and work well with the theme.
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Some students figured out they could lift up the flubber and peak underneath or even flip it over to expose the hidden creatures and do-dads. Most of the creatures were purchased at our local Halloween store. The lineup included: spiders, giant ants and flies, miniature rats, lizards, centipedes, Mardi Gras beads, and miniature pumpkins.
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After each object was unearthed from the flubber everyone had a great time squishing them back in and setting up scenes.
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