Science Lesson: How to make Slime

Time Required:  45 – 60 mins for process, pus you can allow time for research and findings.

Slime-Spangler-Halloween-Science-Win-25-Gallons1 (1).jpg

Age groups:  Prep to year 9.. Obviously you will need some more time and assistance with the younger and possibly older kids.

Learning Intentions:  To understand what a Polymer is and how chemical reactions can change the state of certain ingredients.

 Click here to download this entire lesson plan and resources as a PDF.

Intro: We are going to make slime, any ideas how we can do it? What ingredients do you think we’ll need?

Show video on YouTube  

Go through step by step instructions of how to make the slime (Paper based instructions included below - Make sure Logistics are good)

ü  Students then create the slime and put it in a bag to take home and show.

Answer the following questions once slime is made.

1.      What happened to the slime when you added the borax powder?

2.      How could we make the slime better, what variations could be offer?

Science Elements:

Now for the SCIENCE part.... This POLYMER is unique because it has qualities of both a solid and a liquid. It can take the shape of its containers like a liquid does, yet you can hold it in your hand and pick it up like a solid. As you might know, solid molecules are tight together, liquid molecules spread out and break apart (drops) POLYMER molecules CHAIN themselves together (they can stretch and bend like chains) and that makes them special. Jell-O, rubber bands, plastic soda bottles, sneaker soles, even gum are all forms of polymers. The polymer you made should be kept in a sealed plastic bag when you aren't playing with it. Also, be sure to keep it away from young kids or pets who might think it’s food. Have fun!

Recap: What is a polymer? Both a solid and a liquid. Molecules which are tiny little molecules chain together which makes an item hold its shape and then can be altered.

What are some other examples of polymers?

Extension Activity

Who can stretch their slime the longest contest?

Who find and display a practical use for it.

Click here to download this entire lesson plan and resources as a PDF.

Have you got the latest version of THE POWDER TOY for Mac & PC?


We get a LOT of people stop by our educational gaming section to find worthwhile games for students to play and the Powder Toy is a real fan favourite with my own students and many of our visitors to Edgalaxy. 

For those of you who have no idea what the powder Toy is The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox game, it simulates air pressure and velocity as well as heat!  And you can read far more of the educational benefits about the powder toy here.

The Good news is that you can download the latest version of the Powder Toy right here for Windows, Mac and even Linux.  Enjoy.

Interactive Periodic Table of the Elements for Students

Learning the periodic table of Elements has always been a bit of a bore for many but I have put together a few websites that might make this a little more enticing to your students.  there is an excellentiPad appthat sparked my memory for this post but here are a few web based alternatives to try.

Touchspin Periodic Table- Very Easy to navigate with all the key components.

The Visual Periodic table- Flash based Table

The Dynamic Table- Nice and large great for Inteacitve Whiteboards

Web Elements- Not so Kid friendly but rich in content for older students.

I am sure there are plenty of others out there and I would love to hear about them.

Excellent Chemistry Videos for Students

From the Journal of Chemical Education. Exciting movies of some explosive, flaming, and colorful chemical reactions. You will need the free QuickTime Player to watch.  Check it out here.

Chalkbored - Great Chemistry Resources

At Chalkbored you will find resources for high school chemistry: worksheets, labs, handouts, and PowerPoint lessons. All materials posted here are intended for educational and non profit  organisations.  There are a wealth of resources and lesons for senior cemistry students.  Accces it here

Explosive fun for students with THE POWDER TOY a great science game

My kids have been playing this game for months at school and I really only sat down to have a good look at it this week and found to my surprise that THE POWDER TOY was both a fun game and great educational opportunity for students to learn about chemical reactions.

Kids love to blow things up which is essentially what Powder is all about but it goes a great deal deeper  than simply allowing students the opportunity to play around with many "powdery" pixels of diverse natures, each having different simulated physical and chemical properties.

Some fall faster than others, a few are "solid" and hang in mid-air, etc. A good number of them are flammable, so all you high-school chemistry students who just want to see things blow up should get hooked on this game pretty easily. = ) Almost every substance has a special quality when thrown together with another: for example, water solidifies magma; thunder electrifies metal; torch burns what hits it but is dissolved by water; and the infamous virus eats through and overruns all others, eventually turning back into the first material it came in contact with. Searching for all the unique reactions is part of the entertainment.

As you can see there is plenty here for your casual gamer to hard core science geek to get something from POWDER.  I would recommend it to boys especially looking for something a little different.