Rainbow slime in preschool

I have previously shared with you our simple slime recipe and when my students asked if we could make some slime again – how could I resist?

I decided that instead of using the white Elmer’s glue, we should try using the clear Elmer’s glue which I picked up from Walmart. The clear glue has a more translucent look to it and the colors really pop and since we are talking about rainbows, I want the slime to be bright and colorful!

To make this slime recipe you will need…

  • 1 Part Elmers Clear School Glue
  • 1 Part Liquid Starch
  • food color

The children started by pouring a full bottle of clear glue into a bowl for each color of slime we chose to make…

Then the children filled the clear bottles up with liquid starch (we filled the bottles just about 2/3’s full instead of all the way full) and poured that into the bowl on top of the glue…

And then each child selected one color from our food coloring and added a few drops into the glue and starch mixture…

The children then used a spoon to mix the glue, starch, and food color up until the food color seemed to be well blended and the mixture started to “gel” (this goes very quick)…

Once the slime started gelling a bit, the children set down the spoons and dove in to finish the process with their hands.  By using a spoon at first, it keeps the concentrated areas food color from getting on hands. Once it is mixed up a bit, the food color is much less likely or unlikely to stain hands at all….

After the slime starts to really gel up, then we transferred the slime out of the bowls and onto a tray.  I actually even rinsed off the slime just a quick second and then set it on the trays. The children used their hands to knead the slime. The longer the slime is played with, the more pliable and less sticky it becomes….

The children played with the slime for quite awhile and then we put it away to enjoy again the next day. I added a few more colors of slime as well to what the children had made. The threes joined us for the next day it was a rainbow colored slime party all throughout the classroom…

The children used their hands to pull, stretch, roll, shape, and squeeze the slime…

You will want to make sure the children keep the slime on a washable surface and off of carpet or clothing…

The children also used scissors to cut the slime…

By the end of our day, I let the children mix some of the slime colors and for the most part, we ended up with primarily green slime but the children really didn’t care – it still felt and looked like slime…

We saved the rest of our slime for another day. Slime can be saved in a sealed container or plastic bag for awhile – perhaps up to several weeks. I don’t know for sure because we tend to mix it all up and use it until we decide just to throw it away and start over….

It really is such a wonderful material for sensory play and to work those small muscles…

A great way to feel a rainbow!

View this process on Fox 59!

Click here to view Fox News Segment: Making Goop for Kids

Slime ingredients are available on Amazon….


Books on Amazon…


(A book about how each color of the rainbow makes you feel!)


  1. Anna D. says

    Something that we do a lot in my class when we make this is to add shaving cream! The shaving cream makes the gak a bit more fluffy and adds the ‘clean’ shaving cream scent! My class loves mixing the shaving cream into the gak!

  2. says

    Hey Deborah! We made your rainbow slime today in class. Generally I try these little experiments out on my own kids first, just to be sure they work. This time I jumped in and let the preschoolers give it a go.
    We did just as you did and it was so much fun! Just for fun we had half the kids use the clear glue and the other half use regular glue. I personally loved the clear colors but the children didn’t care. It was fun to show how we could see through the clear colored ones and we could not see through the regular glue ones.
    I think the kids would have played with this stuff the entire day. Alas, after almost 90 minutes of fun, it was time to move on; But only after I promised that we would play with it again tomorrow AND that they could take some home at the end of the week. (parents permission of course!!)
    Even my 2 “Anti-Messy” kids loved mixing up this concoction.
    I sincerely appreciate the time you take to share your God-Given talents with the rest of us!

    • Deborah J. Stewart, M.Ed. says

      You Rock! I love that you just jumped in and gave it a try. My kids were asking if we could make it again the other day. I am thinking I am going to have to offer a week of old favorites and let my class choose what they want to do for an entire day and I am sure the slime will be at the top of the list. Thank you for letting me know that it went so well – I am always so disappointed when someone can’t get it to work. It seems the best way to get it to work is to hand it over to the kids and let them play with it! Thank you so much – I love, love, love it!

  3. Krissy says

    Wow! This is so much fun! I am 45 , I saw this and had to go right out and buy the ingredients. My 11 yr old daughter is ALWAYS buying the store bought slime and FLARP. I knew she would get a real kick out of making her own and she LOVED it! So did I for that matter! We used the clear glue which like you said made the colors more vivid and you can see through the slime. We used the neon food coloring and even mixed a couple of colors together to get non primary colors. We tried filled the glue bottle almost 3/4 of the way and there was definately too much starch to where it really didn’t firm up the way it should (but still worked fine). Then our second batch, we filled around 2/3 full, and that was the ticket. It was exactly like the store bought but prettier!! Thank you so much for sharing this with us, we will be buying stock now for liquid starch and glue! Lol. I am going to try with the regular glue next time!! Well, off to go play with the slime right now!

    • Deborah J. Stewart, M.Ed. says

      Isn’t it amazing? I love that you went out to get the ingredients and gave it a try with your daughter! Super cool MOM! And you are right – 2/3 full is much better!