{"id":589,"date":"2020-03-22T17:09:04","date_gmt":"2020-03-22T23:09:04","guid":{"rendered":"https:\/\/www.greatwolf.com\/blog\/?p=589"},"modified":"2025-12-22T12:10:27","modified_gmt":"2025-12-22T18:10:27","slug":"soap-boat-science-experiment","status":"publish","type":"post","link":"https:\/\/www.greatwolf.com\/blog\/soap-boat-science-experiment\/","title":{"rendered":"Kitchen Science: How to Conduct a Soap Boat Water Race"},"content":{"rendered":"\n<p><span style=\"font-weight: 400;\">Scientific thinking isn\u2019t just something your children learn in school. It\u2019s how they naturally examine the world around around them by asking questions like, \u201cHow does it snow?\u201d or \u201cWhy is the sky blue?\u201d And when you encourage your children to ask questions, investigate, and seek answers, you encourage them to be curious and confident. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">The best way to do that? Introduce fun science experiments for kids at home. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">\u201cChildren ages 2-7 are optimistic about their ability to learn new skills, and eager to ask questions, so it\u2019s a great time to introduce science activities.\u201d says Erica Peterson, founder of Science Tots, an organization that powers early STEM learning. &nbsp;<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Research shows that children have formed their opinion of science by the age of 7, and when you bring science out of the classroom, you increase the likelihood that your children will develop a lifelong love of it, and help them understand that science is something they <\/span><i><span style=\"font-weight: 400;\">do<\/span><\/i><span style=\"font-weight: 400;\">, not memorize. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">We found a simple soap boat race to spark your children\u2019s scientific curiosity from the comfort of your kitchen. The key to conducting <\/span><a href=\"https:\/\/www.greatwolf.com\/blog\/oil-and-water-kids-experiment\/\"><span style=\"font-weight: 400;\">kitchen science with your family<\/span><\/a><span style=\"font-weight: 400;\">? Finding <\/span><span style=\"font-weight: 400;\">experiments you can do at home with household items<\/span><span style=\"font-weight: 400;\"> that encourage imagination and exploration. <\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Materials You\u2019ll Need:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\">A shallow dish<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Plastic boats (that can float) or any small object that floats<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Cotton swabs <\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">An empty ice tray (or other small dishes)<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Different kinds of liquid, we recommend:<\/span>\n<ul class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\">Dish soap<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Hand soap<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Vinegar<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Oil<\/span><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">Glitter (or anything flaky. Herbs work too!)<\/span><\/li>\n\n\n\n<li><span style=\"font-weight: 400;\">String or yarn<\/span><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Instructions:<\/h2>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 1:<\/strong> Fill your shallow dish with water. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 2:<\/strong> Have your children sprinkle glitter on top.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 3:<\/strong> In the empty ice tray, fill the cavities with your various liquids. Put a cotton swab in each. (You or your children can do this step.)<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 4: <\/strong>Ask your children to put the tip of a dry cotton swab in the water. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 5:<\/strong> Now, have them take the cotton swab from the dish soap and put it in the water. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Watch closely. What happened? If you followed the instructions, you saw your glitter separate\u2014and here\u2019s why. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">The molecules that are on the surface of the water cling tightly to each other. This is called <\/span><a href=\"https:\/\/www.thoughtco.com\/surface-tension-definition-and-experiments-2699204\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-weight: 400;\">surface tension<\/span><\/a><span style=\"font-weight: 400;\"> (think of it as an imaginary skin on top of the water). So, when the cotton swab with the dish soap hits the surface of the water, the water molecules spring apart, bringing the glitter with them.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Now that we have the basic concept down, it\u2019s time to test the other liquids in the water dish. &nbsp;Liquids with lower surface tension will move toward liquids with higher surface tension. It\u2019s kind of like a game of tug of war where the higher surface tension will always win. It\u2019s also known by places like NASA as the Marangoni Effect, in case you want to read up. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Our recommendation: If your child is old enough, have them write down what they think will happen with each liquid before they test, teaching them the meaning of the word \u201chypothesis.\u201d The key is to assure them that it\u2019s okay to not know the answer. Scientific thinking is not about knowing the answer\u2014it\u2019s about trying to find it through testing and investigating together. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">After you test each liquid, based on what happens, have your child(ren) try to determine whether that liquid had higher or lower surface tension than the water. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Once they\u2019ve tested all their liquids, based on their results, have your child(ren) choose which liquid they would like to race with.<\/span><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Kitchen Science: How to Conduct a Soap Boat Water Race\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Cllb3MMmL4c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Soap Boat Race Next Steps:<\/h2>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 1:<\/strong> Empty the water dish and fill it again. Don\u2019t add glitter this time.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 2:<\/strong> Put a piece of string down the middle of the dish to make separate lanes for each boat.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 3:<\/strong> Place each boat on the same end of the dish and have your child(ren) ready with a cotton swab with their liquid on it.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\"><strong>Step 4: <\/strong>At the same time, both racers should dip their cotton swab behind the boats as many times as needed to reach the other side. The <\/span><span style=\"font-weight: 400;\">soap boat<\/span><span style=\"font-weight: 400;\"> that makes it to the other end first wins!<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">After you race with your child, ask them to tell you what makes their boat go faster and why they think that is. Hint: It all comes back to <\/span><a href=\"https:\/\/kidsactivitiesblog.com\/12902\/what-is-surface-tension\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">surface tension<\/span><\/a><span style=\"font-weight: 400;\">. Soaps, especially concentrated ones like dish soap, decrease surface tension in water. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Why? Because soap is a <\/span><a href=\"http:\/\/encyclopedia.kids.net.au\/page\/su\/Surfactant\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">surfactant<\/span><\/a><span style=\"font-weight: 400;\">, meaning it attracts both oil and water. So, when the detergent hits the water, it attracts the water molecules to it, therefore breaking the surface tension.<\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">After your experiment is over, take the time to research other examples of surface tension in everyday life. You could even have a discussion on how those soap molecules <\/span><a href=\"https:\/\/www.washingtonpost.com\/news\/speaking-of-science\/wp\/2017\/03\/20\/dear-science-how-does-soap-make-things-clean\/?utm_term=.dc0301d124c6\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">clean the oil off your dishes<\/span><\/a><span style=\"font-weight: 400;\"> by attracting them. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Soap, similar to what it did in our boat race, disrupts the arrangement of water (and oil) molecules on your dishes, allowing them to mix when they normally wouldn\u2019t [internal link to oil &amp; water article] and lifting the grease off of your plates and pots. See, science is everywhere\u2014not just in the classroom. <\/span><\/p>\n\n\n\n<p><span style=\"font-weight: 400;\">Who knows, you may even get your kids more interested in chores (you can thank us later)\u2014or at the very least, ready for more <\/span><span style=\"font-weight: 400;\">fun kitchen science experiments<\/span><span style=\"font-weight: 400;\">. Happy experimenting! <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scientific thinking isn\u2019t just something your children learn in school. It\u2019s how they naturally examine the world around around them by asking questions like, \u201cHow does it snow?\u201d or \u201cWhy is the sky blue?\u201d And when you encourage your children to ask questions, investigate, and seek answers, you encourage them to be curious and confident. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":593,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5,125],"tags":[],"class_list":["post-589","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-family-fun","category-science-experiements"],"uagb_featured_image_src":{"full":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace.jpg",1024,512,false],"thumbnail":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace-150x150.jpg",150,150,true],"medium":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace-300x150-1.jpg",300,150,true],"medium_large":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace-768x384-1.jpg",768,384,true],"large":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace-1024x512.jpg",1024,512,true],"1536x1536":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace.jpg",1024,512,false],"2048x2048":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace.jpg",1024,512,false],"wpvqgr-square-answer":["https:\/\/www.greatwolf.com\/blog\/wp-content\/uploads\/2019\/01\/TWboatrace-300x300.jpg",300,300,true]},"uagb_author_info":{"display_name":"Great Wolf Lodge","author_link":"https:\/\/www.greatwolf.com\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"Scientific thinking isn\u2019t just something your children learn in school. It\u2019s how they naturally examine the world around around them by asking questions like, \u201cHow does it snow?\u201d or \u201cWhy is the sky blue?\u201d And when you encourage your children to ask questions, investigate, and seek answers, you encourage them to be curious and confident.&hellip;","_links":{"self":[{"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/posts\/589","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/comments?post=589"}],"version-history":[{"count":0,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/posts\/589\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/media\/593"}],"wp:attachment":[{"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/media?parent=589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/categories?post=589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greatwolf.com\/blog\/wp-json\/wp\/v2\/tags?post=589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}