ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Fast and Easy Science Fair Projects: Siphon Fun

Updated on December 30, 2019
Click thumbnail to view full-size
Long piece of aquarium tubingSeveral books2 two-lite soda bottleWater
Long piece of aquarium tubing
Long piece of aquarium tubing
Several books
Several books
2 two-lite soda bottle
2 two-lite soda bottle

Water drains to own level

Purpose: Discover how a siphon works.

Overview: A hose or tube can be used to create a "siphon," a device that drains liquids. A siphon will drain liquid from a higher to a lower level, even if it first has to travel uphill! A hose placed with one end underwater in an above-ground swimming pool and the rest draped over the side and down to the ground will drain water out of the pool. To get the flow started, it may be necessary to suck on the low end of the hose. Once the flow begins, gravity pulls the liquid down, creating a vacuum in the tube that draws the liquid up and through the tube.

Hypothesis: Water can be made to rise above its level through the use of a siphon.

You need:

  • 2 two-liter soda bottles
  • Long piece of aquarium tubing
  • Several books
  • Water

Procedure: Stack books on a table. Fill a clear plastic bottle with water and place in on the books. Set and empty bottle near it, but on a lower level - not on the books

     Insert one end of plastic tubing, available at pet shops, into the bottle of water. Be sure there is space around the tubing in the bottle's neck (if it is air-tight, the siphon will not work). The end of the tubing should touch the bottom of the bottle. Suck on the other end of the tubing, as you would a soda straw, to get the water flowing, the insert the tube into the empty bottle. Push the tubing in so it touches the bottom of the bottle.

     Held Constant is gravity, the volume of water, the lack of air in the tube system, and the bottles. The motion of the water from higher to lower bottle is the Variable.

Results and Conclusion: Write down the results of your experiment. Come to a conclusion as to whether or not your hypothesis was correct.

Something more: 1. Once the lower bottle is filled, do you think that the siphon would work in reverse? What if the bottle was now raised higher than one of the books?

2. Does it take the same amount of time for the bottle to empty each time the experiment is done, so that it could be used as a sort of "water clock"?

     Thanks for reading this one! Hope you liked it! This is my 40th hub on Fast and Fair Science Fair Projects. This one is extremely easy, useful and fun! I'm sure most of you all out there, enjoyed reading and trying out this one, especially kids! If you want more on Fast and Easy Science Fair Projects, you can try my other Hubs on the same topic. Here are five of my Latest Hubs on Fast and Easy Science Fair Projects for you:


This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)