STEM: Vinegar volcano with Ingrid at Inala Library - video transcript

This page is a transcript of the 'STEM: Vinegar volcano with Ingrid at Inala Library' video on Brisbane City Council's YouTube channel. The video is 5 minutes and 14 seconds long.


>> INGRID: Hello. Welcome to Inala Library. My name is Ingrid and I’m going to share some fun and explosive science with you in our library laboratory.

This easy experiment can be done with ingredients you already have at home. Just remember to ask an adult for permission and to supervise you.

We will also be including some craft fun and again you can use anything that you have at home. Nothing special needed!

So what are we making today Vinegar Volcanoes. But firstly a little bit about volcanoes. 

Volcanoes are caused by the movement of gigantic slabs of land that called tectonic plates that make up the earth’s surface.  When these plates move magma which is the very hot melted rock that makes up the earth’s interior is pushed upwards, and outwards to create lava. 

There are about 500 active volcanoes on Earth and about 50 eruptions each year.  You can find out lots more about volcanoes via the Brisbane City Council Library catalogue.  One of my favourite online resources is National Geographic Kids.

So what do you need for this experiment, we need two tablespoons of bicarbonate soda, half a cup vinegar and a quarter of a cup of water also a couple of drops of dishwashing detergent and some Food colouring, also a bottle or similar container.

Also you will need some craft supplies and again you can use anything that you have around the house or in the garden. But you will at least need some scissors, some glue, some scrap paper and a piece of cardboard.

So on my piece of cardboard I have drawn a large circle and a small circle. I’m just going to cut this out now.

Here’s my piece of cardboard circle, I am just going to mould it into the shape of the volcano and just put some glue along there. I’m just going to use a clip to hold it in place there. Right, we will just set that aside for the moment. Okay so there we have my moulded volcano and now comes the fun part of crafting. So I have just cut out some little strips of paper there. Just to visualise the lava coming down the side of our volcano there. You might want to paint on some trees or little people climbing up. No limits to your imaginations there.

So here is one I have prepared earlier, you can see my crafted volcano. I am just placing that on top of the bottle there. An empty bottle.

Right, time for some volcano explosions!

So first thing we do is to carefully place those two tablespoons of bicarbonate soda into the empty bottle there. So now we are just going to mix up the liquids in a separate container. So we will take the half a cup of vinegar, pour that in. Quarter of a cup of water. Also add a couple of drops of dishwashing detergent. And if you can maybe experiment with some colour combinations. I’ve got some red and yellow to make orange.

Couple of drops. And a little bit of yellow. This will make up the orange. There we go. Just give that a good mix around now.

Alright, now comes the really fun part. Now we are going to carefully add the liquid solution to the bottle. Let’s see what happens.

So there we have it.

Thank you for joining me for this library laboratory.  I hope you’ve had some fun and learned something too.

Remember you can find lots of science experiment resources online with Brisbane City Council Libraries.  Just need your membership number and PIN to access our catalogue.


Last updated: 2 July 2021
Topics: library