Valentine Science Ideas

Valentine’s day is almost upon us, so today I have a selection of HEART based investigations.


You could make a Stethoscope and listen to a friends heart beating.




Find out what happens to your pulse rate after exercise and how fast it returns to normal.

Explore respiration by making a pizza.


Valentine Pizza


How about learning about melting, by making these melt and pour soaps from Red Ted Art.


heart soaps


Red Ted Art also has a fantastic post about making  candle wicks.



How about making some pretty flowers?

Transpiration flowers


The Imagination Tree has some lovely Spin Art Cards. I’ll come back and explain the science behind these very soon.

spin art heart card


and finally as always we have a themed lava lamp.

lava lamp


If you have any other ideas for me, please add to the comments below and if you try any of these out, please let me know how you got on.


We were lucky enough to win a MAD Blog Award last year and would love to be nominated again in Most Innovative, Schooldays or Family Fun categories.

You can nominate here

Thank you very much!



Science Sparks – making science fun for kids


Author: Emma Vanstone

Science Sparks, is a site dedicated to making Science fun for kids. I’d love you to follow me on my Google Profile+.

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    • Thank you Maggy

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  1. i feel like i’m missing somehting, but where are the actual directions to do these things? they seem really cool, but i don’t see how to do them.

    Post a Reply
    • If you click on the bold writing under each image, that is the link.

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  2. I’m trying to find directions to the lava lamp. I’m unable to find a link for that one.

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    • Sorry, I’ve added it in now.

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  3. I love the ideas about combinating a speciel day and science :)

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