See Your Heartbeat With A Toothpick and A Marshmallow
See Your Heartbeat With A Marshmallow and A Toothpick 💗 All you need is a toothpick and a mini marshmallow (and a heart sticker is optional) for this easy and super cool science experiment. Place the toothpick in the marshmallow and sticker on top of the toothpick if you have one. Then feel on your wrist for your pulse. Place the marshmallow on top of the pulse area and watch the toothpick move to the beat of your heart! So cool!
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