1/16/2023 0 Comments Capillary actioPermenent markers will NOT work for this experiment. In other words they are water based and will move when they come into contact with water for our experiment. HINT: The markers must be washable markers. You want it to be a solid block in the same order as the other side, so color it in well. Now you are going to make a block of each color, in rainbow order as shown above, on each side of the paper towel. Forįurther information, consult your state's handbook of Science Safety.All you need to try this easy science experient for kindergartners are a few simple materials you already have on hand: Materials used in a project is the sole responsibility of each individual. Reading and following the safety precautions of all Should be undertaken only in appropriate settings and with appropriate parental Implementation of any Science Project Idea Warning is hereby given that not all Project Ideas are appropriate for all In addition, yourĪccess to 's website and Science Fair Project Ideas is covered byĮ's Privacy Policy and site Terms of Use, which include limitations Renounce any claims against that arise thereof. By accessing the Science Fair Project Ideas, you waive and Regarding the Science Fair Project Ideas and is not responsible or liable forĪny loss or damage, directly or indirectly, caused by your use of such does not make any guarantee or representation That's how scientists investigate the world, and now that's the way you can too!Į provides the Science Fair Project Ideas for informational Do you think you'll get the same results? Keep guessing different ways to test capillary action - and don't forget to make a hypothesis with each new test. Now you know that the size of the tube is important for capillary action, but what about the liquid tested? Try this same experiment using corn oil, liquid soap and milk. That's why hardly any water adhered to the inner plastic. Even though water is highly cohesive, it can't stick together in a big straw. Now what would happen if you separated your fingers a bit? All the water would spill out. When you lift your hands, some of the water is still pooled in your palm - as long as your fingers are pressed tightly together. Imagine dipping your hands into a pool of water. The smallest straw obviously had the smallest opening, allowing for more water cohesion. Cohesion explains the way molecules of a single substance stick together. The results of this experiment can be explained by what you now know about adhering, along with a new concept: cohesion. You can think of it in terms of attraction - the water molecules are attracted to the inner plastic of the straw. When the water molecules hit the straw, the two different substances adhere, or stick together. In other words, it could never happen between two puddles of water or two straws. Some colored water should have made it up the regular straw, but barely any of the liquid should have traveled up in the biggest straw.Ĭapillary action depends on dissimilar, or different, substances interacting with each other, one a liquid and the other a solid. The water travels highest in the narrow straw. How far up did the water go in each straw? Write down your observations in the desk.Place all three straws in the water, but don’t let them touch the bottom of the glass.Make sure that they are each lined up the same. Practice holding all three straws in one hand.
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