So how does glue do that? The polymers that make up glue are strong, flexible, and spreadable. These qualities help it to stick to paper, plastic, glass, wood, and other surfaces. Glue also has another important ingredient: water. When you squeeze a glue bottle and the glue comes out, air touches it.
That causes the water in the glue to evaporate, or change from a liquid to a gas. When the water evaporates, only the sticky polymers remain in the glue. Without water, the glue dries, gets hard, and keeps your artwork in one piece. Guess what? That keeps the glue from drying out.
We bet there are even more kinds at your local craft store too! Who knew there were so many types! Great Question, Mae-Mae! We think it has something to do with the fact that the less glue in one place, the quicker it will dry. Great question, Wonder Friend! Perhaps you can do a sticky experiment to find the answer! We are so glad you shared your awesome comment!
Hi Brya! Thanks for sharing your comment with us today. We are glad you told us how we can improve our Wonder video for the future! Did you fly this awesome, homemade kite?
How high did it fly? In honor of your awesome crafty creation, check out Wonder Who Invented the Kite? We're so happy you learned something new with us today, Arden and Hannah! Glue is tricky, but not so sticky inside its bottle! Great Wonder, Chop! Thanks for sharing your very own question We Wonder what it contains? WOW, what another great Wonder from Mr.
Morrison's students!! We know that you've learned about the ingredients of glue, but we WONDER if you can do some research of your own to find out what glue without water would look like. What glue work the same if it didn't have water in it? Morrison's 3rd grade class have found! It makes us super happy to hear that you learned something new about glue today!
Thank you for visiting Wonderopolis and for leaving such a nice comment, Sanyukta! We're so glad that you like hanging out with us and learning new things! Thank you for visiting Wonderopolis and for leaving us such a nice comment!
I know right the video was pretty cool and honestly I have never asked that question before I just typed in some randome numbers and it said why doesn't glue stick to its container then I just thought that was a very good question and started wondering why.
Thanks for commenting, Mariyah! We think it's pretty neat that you search for a random number and see which Wonder of the Day pops up!
What fun! We are undergoing some spring clearing site maintenance and need to temporarily disable the commenting feature. Thanks for your patience. Drag a word to its definition. You have answered 0 of 3 questions correctly and your score is:. Want to add a little wonder to your website? Help spread the wonder of families learning together.
We sent you SMS, for complete subscription please reply. Follow Twitter Instagram Facebook. Why doesn't glue stick to the inside of the bottle? What are polymers? How does mechanical adhesion differ from chemical adhesion?
Tags: See All Tags adhesion , bottle , chemical , chemistry , evaporate , glue , mechanical , paste , polymer , science , solvent , stick , stuck , vapor , water. Is it magic? It's science — and it's all about water. Wonder What's Next? We sure hope tomorrow's Wonder of the Day measures up! Try It Out Ready to have some fun with glue? Ask a friend or family member to stick close to your side as you explore one or more of the following activities: When you're finished, pick one or more of the fun crafts below to try.
Don't forget to clean up afterward! Up for a challenge? Go to the store and get a few different types of glues or adhesives. Do your own tests with them at home to see which ones dry fastest and hold the longest. You'll need to come up with your own ways to test these concepts.
Perhaps you could see how much weight each type of adhesive will hold when used to attach an object with a known weight to a board? That's just one idea. Feel free to come up with your own creative ideas! Use a chart to track your data and, when you're finished, create a graphic that presents your data and your conclusions.
Which adhesive would you recommend? Have fun exploring the scientific side of glue! If you don't have any glue on hand, that's fine. We're going to start by making our own homemade glue. Just follow the recipe and directions below to make your very own all-natural glue: Homemade Natural Glue. Did you get it? Test your knowledge. What are you wondering? Wonder Words glue bottle strand pasty mechanical chemical manufacturer vapor stretchy polymer adhesion confounded solvent evaporate Take the Wonder Word Challenge.
Join the Discussion. None Nov 12, Can you please do Why Do erasers erase pencil marks? I'm really curious on the topic. Nov 12, We already did! Allie Nov 8, Nov 10, Hi Allie! Lucas Sep 15, When I was a kid I liked to put glue in my hands and then scratch it off but today I really fell angry when its happen. These days I was at home trying to fix my string so I had to put glue on it but I put more than it's really need to be fixed, I had to clean up the remains of it because of it my hands was full of glue and I felt angry.
Sep 16, Did bag C contain the solidest polymeric material, and did bag A contain the most liquidlike one? Elmer's Glue contains polyvinyl acetate molecules, which are long polymer molecules that are tangled with each other. This is what makes glue viscous, or thick and sticky.
When borax sodium tetraborate is added to polyvinyl acetate and cross-links the latter's molecules to each other, the glue solution becomes more viscous. As borax cross-links more and more of the glue molecules together and they become more viscous, an increasingly larger and solid polymeric material is made from the reaction. The bag with the least amount of glue, bag A, should have been the most liquidlike, whereas the bag with the largest amount of glue, bag C, should have been the solidest.
Store-bought Silly Putty and Slime are not made using polyvinyl acetate, but rather from organosiloxane polymers or polyvinyl alcohol to increase their durability.
Cleanup The 50 percent glue solution and the glue and borax mixtures should not be poured down drains as they can form clogs. Dispose of them in plastic bags that you can throw in the garbage. Already a subscriber? Sign in. Thanks for reading Scientific American. Create your free account or Sign in to continue. See Subscription Options. Discover World-Changing Science. Build a Cooler. Get smart. Sign up for our email newsletter.
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