Fun Science: D.I.Y Reusable Bubbles

Enjoy blowing bubbles? Want to create your own reusable bubbles that will provide hours of fun for all ages? Well you have come to the right place. We have discovered that it is really easy to make your own reusable bubbles, why not check out the post for more information.

In order to make D.I.Y reusable bubbles first of all you will need to make your own galaxy slime. For the slime/gak you will need a bottle of clear glue, liquid starch, liquid water colours (black, turquoise, violet and white/silver works best) and glitter.

Liquid water colours

Liquid water colours

Fun with glitter!

Fun with glitter!

 

 

 

 

 

 

 

 

 

First of all you will need to put the glue to a bowl.

Then add your colouring (if you can’t find liquid water colours why not try using food colouring) add glitter and mix well.

Next you need to start adding the starch, adding a little bit at a time, stirring well to mix after each one to incorporate your starch fully.After the first couple of additions you’ll need to use your hands to knead the starch in, just like you are making bread dough.

Just add a little at a time and do a “stretch test”after the starch is kneaded in. Once your slime is the consistency you prefer, STOP!

 

Galaxy Slime

Galaxy Slime

Note: you will need to do this for each of the different colours and then mix all of the colours together to create your galaxy slime!

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The stretch test

 

Bubble Time!

To make the slime bubbles all you will need to do is get a small piece of the slime and roll it into a ball.

You will then need to get a thick straw and insert into the middle of the slime (see image below).

Place straw in the middle of the slime

Now, take the straw and blow! It will take some finesse (just like blowing a bubble with bubblegum does) and you’ll want to pinch the slime around the straw to be sure you don’t leak air, but once you get the hang of it let everyone have a go to see who can made the biggest bubbles. Roll up the slime and use over and over.

Giant reusable bubbles!

Giant reusable bubbles!

The Science bit:

The mixture of glue with liquid starch and liquid water colours produces a putty-like material called a polymer. In simplest terms, a polymer is a long chain of molecules. You can use the example of cooking spaghetti to better understand why this polymer behaves in the way it does. When a pile of freshly cooked spaghetti comes out of the hot water and into the bowl, the strands flow like a liquid from the pan to the bowl. This is because the spaghetti strands are slippery and slide over one another. After awhile, the water drains off of the pasta and the strands start to stick together. The spaghetti takes on a rubbery texture.

Many natural and synthetic polymers behave in a similar manner. Polymers are made out of long strands of molecules like spaghetti. If the long molecules slide past each other easily, then the substance acts like a liquid because the molecules flow. If the molecules stick together at a few places along the strand, then the substance behaves like a rubbery solid called an elastomer.