The Sci Guys: Science at Home - SE1 - EP18: Water Bottle Rockets
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- Опубліковано 10 лют 2025
- Welcome to the eighteenth episode of The Sci Guys. In this episode we will be investigating physical propulsion by building a water bottle rocket. We will show you how you can explore this topic at home with a bunch of simple household items and at the end you will have a fully functioning water bottle rocket.
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Equipment and Ingredients:
Empty 2L Soda Bottle
Foam Core Board
Tennis Ball
Cork
Nail
Bike Pump
Packing Tape
Pencil
Ruler
Utility Knife
Measuring Cup
Water
Goggles
Lab Coat
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I won my science project at my school thanks sci guys
Cool beans!!
Wish me good luck, I will try to do the same next week
Hello
😅 Me too
Forgot the comma
Just did this with my kids and had so much fun. Thank you for you work!
I'm doing this for my science project. Thanks sci guys I can't wait to do this
Same 😅😅
@@talha.587 same lol
omg same
@@talha.587 wth
okay this is gonna be so creepy but did you go to scholarly
sorry if you didn't i can embarrass myself really well
I got a number one at my school for the bottle rocket contest! HUGE THANKS!❤❤❤
I cannot wait to perform this experiment at my school's science fair
Perfect for our homeschool unit. Thanks so much for sharing!
You guys have given me the best explanations on experiments like these
Didier Serrano Moreno You're most welcome.
Thank You, Guys! This really helped me on my Science Project and helped my parents understand better :D You had no idea how hard it was to explain this project ;))
The white coats makes it look like a Gary Larsson scenery. ;)) liked it very much!
very nice!
Thank you . My kids loved the rockets!
B-R-U-H
Hello
I loved my water rockets when I was a kid. So fun. I remember learning, from Robert Heinlein, about reaction mass. I sort of understood we were dealing with a Newton's law.
I did a perfect school project thanks to you ski guys
A couple of safety things I feel should be addressed in this video- when cutting anything with a scalpel or utility knife you should be using a steel ruler, this not only protects your fingers from the blade, but it also ensures that your lines will be straight and not wiggly. When cutting with a knife you should NEVER cut towards yourself, always cut away or at right angles to your body- if cutting through something tough or thick you can be putting a lot of pressure onto the blade and once it is free from the material it is incredibly easy for the blade to fly into you if you are cutting towards yourself- I got a scalpel blade in my leg cutting in this way- it's a lazy and unsafe method Otherwise, an awesome video- I hope to use this in teaching a class of p7's. Thanks!
shush no one cares
Hello
Omg thank you so much you saved me from failing my science project 😂❤
Monica in reply to your question, are there a way that you can make the rocket travel higher and stay up in the air longer?
There are a number of ways. One way would be to build up more air pressure inside of your bottle. To do this you would need to use a much tighter fitting cork or build a release mechanism for your rocket. A release mechanism would hold the rocket on the launcher until you pull a string or press a button, and would work the best. A tighter fitting cork is much less effort but may not work as well. Be careful with both of these methods because too much air pressure inside the bottle could cause it to explode before it even launches.
Another method would be to run tests to find the perfect amount of water to add inside your bottle. If you can find enough water to make it go high, but not too much that it weighs down your rocket that will also increase the height that it flies.
A way to slow the rockets decent would be to design and add a deployable parachute. If you want to do this method, I would suggest searching on google for tutorials.
There are probably more ways to get the rocket to go higher, if anyone has any suggestions reply to this post. I hope that these ideas will work for you and let us know how you do in your competition.
Thank you I going to try this
Monica Nan Sounds great :) Let us know how it turns out.
The Sci Guys Hello we are about to perform this experiment.... Can we use Soda (Sprite, Coke) like that to make the rocket more higher?? Thank You!! Needing your answers ASAP
darren That is exciting that you are doing this experiment. I doubt soda would change the height the rocket would fly. What would make it higher is adding more pressure and finding a perfect balance between pressure and liquid amounts.
The Sci Guys I
The pump part helped alot
I receive honors at my science proyect. Thank u guys.
thanks ! I will use this for my homework :)
Great video, my 8 yrs old kid loved it
This video is perfect for explaining how a bottle rocket works to a 3rd grader. Thanks.
Toni Jenkins I am really glad you found our video informative!!
Super cool vid man ❤😂😊😅😮😮
Thank SciGuys, now I have an idea to how to make one for my school project.
Juan Jimenez sweet
I wanna try it !!
Thank you for this idea. I’m using it for a makerspace
"fwuuuuuuuuuu im a rocket"🤣
Super I love this experience❤
Nice video needed help from my technology project
*I SUBSCRIBED your channel bros and turned the post notifications on. Awesome experiment bros. Love you brothers from Pakistan.* ❤
it's great I tried it and it was amazing I am part of space club and they always told and shoe hydro rocketry but they never told how they do it I am now very happy as I can create my own hydro rocket now
+G Kaur great to hear you are having fun with it
❤ This is too great
I like this one is so cool
I am going to try this in my science project! Also Facebook isn’t famous anymore
love it !!!!!!!!!!!!!!!!!!!!
Suppose I would want to add a parachute to the to.. how would i do that and what effect would it make to the overall experiement, like would it effect the height the rocket goes and how would the parachute be activated... any ideas Sci Guys?
+Adil Mehra Also suppose we would want to put another liquid in the bottle, suppose coke? would the rocket go higher as there is a much more reactive liquid in the bottle?
Hello
What is the use of tennis ball ? Pls reply me ASAP i need to present it in class 🥺
squirrels in the trees and the critters in the creek
I just did this in my science fair but instead of a just a bottle I made it look like the Saturn v
also in our water rocket challenge,the winner is measured by the range at which rocket lands instead of height,so would u suggest any improvement in aerodynamics of rocket or rocket launcher that would make it land farther
brhamjyot singh sandhu If you are building a rocket and looking at range, I think that angling it at a 45 degree angle will help to get the distance. You may want to play with the weight of the nose cone because if it's too heavy it will pull it down quickly and if it's too light it may not move the centre of gravity enough to keep your trajectory.
wow thanks guys, i got an A+ for my work
Trương Đức Hiếu Congrats :) We love hearing about the academic achievements of our viewers. Keep up the great work!!!
hiii!!!! what is the function of the tennis ball? what happens if you don't use it? does it go further?
Very good video 9YD loved it.
Thanks guys
Wow, amazing :O
could it be possible to use a chemical reaction to generate the potensial energy to
launch the rocket
Imma make a delivery to the space station
Hey sic guys, you guys really helped me out on my science project, thxs :3
Jacob Cope You're very welcome :) Glad we could help. If you want to help us out you can share our videos with your friends and encourage them to subscribe. Also let us know if you have any suggestions for episodes.
The Sci Guys would a raw egg survive the fall if it is in the rocket in a capsule?
Manuel Martinez you need to create a cushion so that a lot of energy goes towards deforming the cushion rather than into the egg. A great way to understand this is by researching momentum and impulse.
Love from Vietnam.
hey sci-guys i go to a class that's all about water bottle rockets and one of my friends got it up to 810 ft. mine was 435 ft but we used a special launcher that my teacher designed himself. maybe you guys can use a launcher! :-)
Erika Ojeda That is a really great height!! I like your idea of making a launcher. We will probably do a follow up episode on how to make a launcher for your rocket. Thanks for the idea.
@@TheSciGuys hey sci-guys what can i use as an alternative of foam core board and cork??
@@srishtisinhasinha4142 Cardstock and a waterbottle lid.
Thx helped a lot in school project
Tudor Cornescu You're very welcome.
My daughter is going to do this for her school science fair. I think we'll do a few attempts at home just to be sure she has a good idea how to do it and what to expect. Should we use a different bottle each time or can we reuse? Also, about how much radius would you recommend for launch to safely be away from cars and the school building? Thank you, great video!
Lisa Umbilal That is exciting!! You can use the same bottle each time as long as the bottle is not ruptured. The distance you should be away from the school and cars depends on the direction and strength of the wind. If there is just a light, then 50 feet should be enough but as the wind gets stronger that distance grows. Also our build of rocket is pretty light and I cannot see it doing much damage to a vehicle or building.
You could also use different size and shapes of bottles, as well as different amounts of water, to find out how they impact the height that can be reached.
gang gang design guys, but is there a substituTe for a cork?
Is it possible to do this without the cork cuz i don't have one and we gotta do this tomorrow 😭
I'm going to try this on our science project i hope it works we only have 2 chances Wahhhh :> Thank you.
Can this experiment demonstrate of 3 laws of motions/force by newton?
How do I keep an egg safe in this? I'm doomed in physics right now if I cannot figure this out LOL
can I use it as a project of recycling
can I use it as a recycling project +Sci science
+gumdrops drops maybe? You are re-using materials, I would guess if you used all previously used materials but it would depend on what the goals of the project are.
does the amount of water matter how high the water bottle rockets can reach it's distance? please answer thank you.
Hi sci guys I am using it for my sci competition can you tell me why did you use the ball
SICK MUSIC!
Thanks a lot for the video! I wonder if there's a way to calculate how much water and pressure are needed (or else?), when we aim to hit a target in a particular distance. Anyone ever experimented with this? Thanks in advance.
1/3 water and rest air. If not spliced bottle, go for 80,100 or 120 psi
thank you very much for your responds
Oh golly gosh I’m so grateful for this, I’m doing this for science and u gave me all the answers. Thamks
this video and this idea are amazing!!!
+Lorenzo Marchetto Thanks!!
+The Sci Guys can i use any kind of bottles exceptl little i mean fat bottles?
Imma try to make the bottle go to SPACE or THE MOON OR MARS!
nice video man, im gonna try this!
modemmod100 Sweet!! Let us know how it goes.
I want the rocket go higher and go down longer ? How do I do that ? It competition in my class
So, can you reuse the bottle and fill it with water again?
When im older, i need to make a rocket that has side boosters, and i comtrol it with a remote.
can i substitute the tennis ball with something else?
I have a small question, since I live in a place where it's kinda hard to find these materials, may I ask if there is a substitute for cork? Like a material similar to cork, but not too hard to find?
Yah you can use a cycle valve
I have rocket science experiment day after tomorrow
Wish me luck 🤞🤞
dear sci what t type of bottle would make it go higher
I couldn't find a cork, what another item that could replace it?
good job
Why do you need the water? Won't the air pressure produce the same thrust!
I was thinking about this too and after a few ideas I landed on mass. The water is forced out of the bottle but it has more mass, so it is doing more than if it were just the gas.
Basically, since it takes longer to get out of the rocket, it is applying a longer acting force so the momentum change is different
Great work , guys.
Good fun and science.
+Aorion On Thanks!!
nice video man, we actually are competing in a different competition,in which we've to blow cork in a test tube as far as possible without breaking the test tube,it would be of great help to us if u would suggest any chemical rxn or method that would do the job
brhamjyot singh sandhu Well there are a few options that are simple. What you really need is something, solid or liquid, that will turn into a gas. You will also have to play with how snug the cork is so that it's snug enough that it will still shoot out before the glass breaks. Off the top of my head a few items you could try are baking soda and vinegar or putting a piece or two of dry ice in there. The dry ice may weaken the glass because of it's temperature but might be a good option. What types of methods were you thinking of using?
THANK YOU FOR THUS
Wooow thxs alot for the video helped me Lot on my science fair
Noureldeenhany Aldeeb You're very welcome :)
Is it okay to use card boards on the stand of the bottle rockets and what if you put little more water on the bottle? will it go a bit more higher?
chuleng voluptous Yes it's ok to use cardboard but you may need to replace it if it gets too wet to hold up the rocket or if it sends the rocket in strange directions when wet. You can try adding more water, or removing some to improve the height. It's something that you will have to try out and see what works best.
Wow great idea with the tire pump this is perfect for my chemistry class.
whats the purpose of the tennis ball on the top?
hello, i liked your video. it has all the explanation. but how does air pressure affect the motion of the water rocket. and how do we measure the air pressure in this experiment?
what's the use of tennis ball inn this experiment please explain
I'm using this for my project thanks guys :)
I dont have a needle in my pump what should i do???
I was wondering what could you use if you dont have a tennis ball or a cork
Krystal David You could use a rubber stopper instead of a cork and you can make a cone out of just about anything. Just make sure it has a little bit of weight.
Hi, hey good video but why do you use a tennis ball?
How high does the bottle usually go?
Hello
Is there any replacement for a cork
You guys are in Quakers hill
Thank sci guys! I am doing this for my project!
My class is doing that project for science Friday
+Mark Ayllon That is awesome :) When I was in junior high we did this one but we had to put an egg in the nose cone and figure out a way for it to get back to earth without breaking. Most of the eggs broke.
It was awesome
what's the purpose of the tennis ball?
what is the ball for? weight?
What can I use instead of a cork?
Guys can i replace the tennis ball with somthing else?
hi can i use cardboard for the fins for science project Im am testing to see if a rocket with hot water will go higher than one with cold water.
im do a project at i only can use carbonated water bottles and I also have to fight air resistance!! what Im asking is what kind of bottle I can ues?? and what can help the rocket stay longer in the air!!!!!