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    Home » Science Experiments for Kids » Biology » Mint Chocolate Leaves – Changes of State

    Mint Chocolate Leaves – Changes of State

    January 17, 2013 By Emma Vanstone 1 Comment

    Valentines Day is coming up, so I thought we’d do some activities based around that, starting with some chocolate leaves. These are also a fun idea for Christmas science in the kitchen.

    Mint Chocolate Leaves Ingredients

    Mint leaves

    Chocolate ( we used a lovely 70% dark kind )

    How to make mint chocolate leaves

    Melt the chocolate. You can do this in a microwave or in a bowl placed over another bowl of hot water ( take care with both methods ).

    Check the chocolate isn’t too hot, and then dip the leaves into it. Another way to do this is to paint the chocolate over the top of the leaves.

    Mint leaves

    Place in the fridge to cool.

    Gently peel the leaf away from the chocolate. What do you think?

    Can you see the imprint of the leaf veins in the chocolate? Veins form part of the transport system of a plant. They carry water and nutrients to to the leaf and remove the sap from the leaf. They also help give the leaf its structure.

    This experiment is a great way to demonstrate the process of changing state from solid to liquid and back again.

    Everything we know exists in three states: solid, liquid or gas!

    Substances  can change from one state to another by different processes.

    SOLID  ––> LIQUID = MELTING

    LIQUID ––> GAS = EVAPORATING/BOILING

    GAS  ––> LIQUID = CONDENSING

    LIQUID ––> SOLID = COOLING/FREEZING

    When the chocolate was heated it changed from solid to liquid ( it melted ) then it changed back into a solid as it cooled.

    Mint Chocolate Leaves - learn about changes of state with this fun kitchen science activity

    Last Updated on October 19, 2020 by Emma Vanstone

    « The ABC of Science Experiments
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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.

    Reader Interactions

    Comments

    1. Diane Hurst

      June 13, 2013 at 2:43 pm

      We made these when I was a kid! It was so much fun, and they taste very good!

      Reply

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