Category Archives: Step Five – STEM Showcase

Making Oobleck

Oobleck is a weird substance!!

Oobleck is a non-Newtonian fluid; it has properties of both liquids and solids.


If you hit the substance with force, it becomes a solid.

If you slowly lower your fingers into the substance, it becomes a liquid.

Weird, eh??

Here are the ingredients you need to make it:

  • cornstarch / cornpowder
  • warm water

We used three parts cornstarch and one part warm water. Mix together.

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An Electro-Magnet

Want to turn a bar of metal into a magnet? We were shown how to do this by this young scientist!

Firstly, wrap copper around a bar of metal. Next, connect one end of the copper wire to a switch. Then, tape down the copper wire so it doesn’t fall out of place. Finally,  flick the switch and the bar has magnetic properties.

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Making a Lava Lamp

See how easy it is to make a Lava Lamp. The boys mixed oil, water, food dye and an Alka-seltzer tablet in a bottle and admired the chemical reaction! Cool!!IMG_0475 IMG_0480 IMG_0481 IMG_0483 IMG_0489 IMG_0490

Reaction of Baking Powder on Malt Vinegar

Watch what happened when baking powder was put in a balloon and dropped in on top of a bottle of malt vinegar!! Their chemical reaction created a gas which inflated the balloon!  Wow! Almost like magic!!

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Making Slime!

Want to make slime? Mix cornstarch and hair conditioner! Success!

IMG_0528 IMG_0531 IMG_0532 IMG_0534A lovely messy job!

One way to make plastic

We were fascinated to see plastic being made out of milk and vinegar. The milk and vinegar were heated in the microwave and then mixed together until small lumps started to form. Food dye was added.  The lumps were shaped and left to cool overnight! Job done! Plastic made! We were amazed!IMG_0463 IMG_0465

The effect of washing-up liquid on food dye

Washing up liquid really does work!! We dropped different coloured food dyes into a saucer of milk. We were fascinated to see the food dye move away from the washing-up liquid when the washing-up liquid was dropped slowly onto the milk using a cotton budIMG_0473 IMG_0470 IMG_0471 IMG_0472 IMG_0473 IMG_0474

Coming Soon!

Check back later!