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    Home » Early Years Science » Christmas Density Jar

    Christmas Density Jar

    Modified: Nov 16, 2024 · Published: Dec 20, 2014 by Emma Vanstone · This post may contain affiliate links · Leave a Comment

    This simple science demonstration is a fantastic way to learn about density! Liquids can be stacked in a glass or jar in order of their density.

    You’ll need

    Sugar Syrup
    Water
    Food colouring
    Vegetable Oil
    Small items to test for floating

    Other things to try:

    • Honey
    • Treacle
    • Washing soap
    Christmas themed density jar

    How to make a Christmas Density Jar

    Pour each liquid into the glass slowly, starting with the sugar syrup (you can add food colouring if you like), followed by the water with added food colouring, and finally, the vegetable oil.

    Drop a few small items in and see which layer they float on.

    Try a marble or coin to see if it sinks to the bottom.

    Density experiment

     

    Why does this work?

    Each liquid has a different mass of molecules or different numbers of parts squashed into the same volume. This means they have different densities, allowing one to sit on top of the other. The more dense a liquid is, the heavier it is.

    Objects and liquids float on liquids of a higher density and sink through liquids of lower density. 

    We’d love to see your Christmas themed density jars.

    ChristmasDensity

    We’ve got lots more fun Christmas science ideas in this post, and we have a FREE Christmas ebook available to download!

    Last Updated on November 16, 2024 by Emma Vanstone

    « Christmas Straw Shooters STEM
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    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.

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