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    Home » Science Experiments for Kids » Chemistry » How to make a multicoloured volcano

    How to make a multicoloured volcano

    January 8, 2017 By Emma Vanstone 1 Comment

    This multicoloured volcano is slightly different to the usual single coloured versions and allows the addition of  a mini design and engineering aspect for older children.

    multicoloured volcano eruption

    The volcano used in the photo above is a model available from Learning Resources. I just split the eruption container in half to make the lava multicoloured.

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    How to make a multicoloured volcano

    What you’ll need

    Large tray

    Sand, play dough, snow

    Empty effervescent vitamin tablet canister or other tube/container

    Thick card

    Washing up liquid

    Vinegar

    Red and yellow liquid food colouring

    Baking soda

    2 Squeezy bottles

    Small stick to mix

    Instructions

    Construct a volcano shape around your tube or container. You could use sand, papier mache, snow, mud or anything at all.

    sand volcano

    Cut out a piece of thick cardboard so it fits tightly inside the canister and place inside so the canister is split in half.

    Add a tablespoon of bicarbonate of soda to each side of the cardboard inside the canister.

    Add half a tablespoon of washing up liquid, a teaspoon of red food colouring and about 30 ml vinegar to one squeezy bottle.

    Repeat using yellow food colouring for the other bottle. If the colours don’t look vibrant add a little more food colouring.

    Squeeze a very small squirt of each coloured vinegar mixture into different sides of the canister and mix both with your stick.

    volcano mix

    Watch the eruption!

    multicoloured volcano

    Things to think about

    How could you make the eruption more explosive?

    Could you add a third colour?

    Links with maths

    Can you time how long the reaction takes from start to finish?

    Try adding twice as much vinegar, is the reaction twice as fast?

    Links with English

    Research a real volcanic eruption and write about the long term effects on the environment.

    See this post for more easy volcano ideas.

    multicoloured volcano

    Contains affiliate links

    Last Updated on June 6, 2020 by Emma Vanstone

    « Simple Christmas Science – Week 3
    Light Up Snowman – Play Dough Circuit »

    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

    Reader Interactions

    Comments

    1. Steffi

      March 08, 2017 at 9:15 pm

      Chris – you are a moral coward. Those photos are of people who are fighting for thier country. Even after this, they still keep lining up to serve as policemen and in the Army.And, the Americans closest to this, US Military members, see this everyday and choose to stay and help. Your smug comments simply iltatlruse the decadance of your detached point of view.

      Reply

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