 Welcome back to Kids Fun Science. My name is Ken. Today's experiment is put a coin into a bottle with just a toothpick and water What you need for this experiment is a straw a glass of water a bottle glass or plastic some coins and Some toothpicks to sign up this experiment take a toothpick and break it in half where it's still connected together and Squeeze it together like this and then put it on top of the water bottle now Take a coin that has to be able to fit inside the bottle and place it on top of the toothpick if it's too big a coin It will let this Experiment won't work then take a straw put it in the glass then put your finger over it and then release your finger from the straw And the water will go on to the toothpick The science behind this is toothpicks are made of dry wood when I broke it the toothpick in the middle the wood Fragments inside compressed once we add the water to the toothpick that capillary action causes the water to absorb Inside the toothpick the water moves inside the dry toothpick from the starting point of the crack and continues along the length of The pointed tips the capillary action of the water traveling inside the toothpick causes the toothpick to straighten out and hence Fall the coin falls into the bottle, which is pretty cool You know one more time here with a penny and this time I'm going to put a couple Drops of water in so I went back in and put a little more water on and then you let Science take a hold of this you can see the toothpick is starting to move right there I'm using a penny this time so it's a little bit larger than the dime as long as it fits in the bottle should be fine Here it goes. It's continuing to straighten out As it's going and the coin is in success I hope you enjoyed this video remember to click thumbs up if you did and to subscribe and thank you for watching