Bicarb & vinegar volcano

Here is another kitchen-cupboard kids experiment perfect for all our budding scientists, but we promise all the kids will enjoy putting the ingredients together and watching the volcano erupt!  A big disclaimer - this should be done outside due to the mess.

Method

1. Combine dishwashing liquid,water, vinegar and a few drops of food coloring into the empty 2 litre bottle.
2. Make bicarb slurry: Fill a cup half way with bicarb and top-up with extra water. Use a spoon to mix the bicarb and water until they are well combined.
3. Now it’s eruption time! Quickly pour the bicarb soda slurry into the soda bottle and step back. 

For our buddying scientists:
A chemical reaction between vinegar and bicarbonate of soda creates a gas called carbon dioxide. Carbon dioxide is the same type of gas used to make the carbonation in sodas. What happens if you shake up a soda? The gas gets very excited and tries to spread out. There is not enough room in the bottle for the gas to spread out so it leaves through the opening very quickly, causing an eruption!

credit

 Images from:

Flaticon and Vecteezy