What is the science behind balloon skewer?
How does it work? The skewer does not pop the balloon thanks to long chains of molecules called polymers. In this experiment, our polymers are composed of rubber molecules. These polymers have a property called elasticity that allows them to stretch when you blow up the balloon.
Why was the skewer able to go through the balloon without popping?
Balloons contain elastic polymers that allow the balloon to stretch. Placing the dish soap on the skewer reduces enough surface tension on the balloon to allow the skewer to puncture the less-taut ends of the balloon. The polymer chains close around the skewer, preventing the balloon from popping.
Why was it important that there were no air pockets between the tape and the balloon?
It is important to make sure there are no gaps while attaching the current tape piece over the balloon. Because your balloon may pop out through the spaces where there is the possibility of escaping air, that is the reason you need to seal the tape properly to stop the exiting of air.
What is the effect of bursting of the balloon on the bulb?
A bulb produces heat, when a ballon is taken near a candle, the heat causes the air molecules in the balloon to vibrate and they expand hence the size of balloon increases and it bursts. Bursting of the balloon is an irreversible physical change.
How do you pierce a balloon without popping it?
Blow up a balloon, but not too full. Method 1 – Dip the tip of the metal skewer in vaseline and rub it along the entire skewer. Gently push into the end of the balloon opposite the knot. Twist and gently push the skewer through to the other side of the balloon near the knot.
Why did you add a lubricant to the skewer before inserting it in the balloon?
Adding a little bit of a lubricant, like soap or oil, to the skewer before pushing it through the balloon makes it easier to get the skewer through the balloon and makes it less likely to pop.
How are spaghetti and balloons similar?
The rubber in the balloon consists of many long molecules that are linked together. It’s similar to the way all of the noodles in a plate of spaghetti stick together. These long molecules are called polymers; when molecules of a polymer are chemically attached to each other, it is called cross-linking.
What causes the balloon to move along the string?
When we inflate a balloon, we fill it with a pressurized gas (air). When we let go of the end, the air rushes out and pushes against the air around the balloon to move it in the opposite direction. Newton describes this effect in his Third Law of Motion: for every action, there is always an equal and opposite reaction.
What happens when an inflated balloon is pricked with a pin?
Yes you are correct. Due to the property of diffusion in gases an inflated air balloon deflates when pricked with a pin.
Why does the balloon expand?
Air molecules collide into the balloon with the same energy inside and outside the balloon. When the bottle is heated, the air molecules inside start moving faster. These molecules now collide into the balloon with more energy resulting in increased pressure. The increased pressure causes the balloon to expand.
Why does a balloon expand when it is inflated?
Gas particles exert pressure on the walls of the container in which the gas is filled. For example, when a balloon is inflated, the air inside it expands, thereby exerting pressure on the balloon walls. As a result, the size of the balloon increases.
How to stretch a balloon with a skewer?
Poke the skewer through the part of the balloon where the balloon material is under the least strain, this is generally the two ends. How does it work? Balloons are made up from long chains of molecules called polymers, which are elastic enough to allow the balloon to stretch.
Does a balloon pop when you put a skewer in it?
This science project helps to understand – how to use surface tension of balloon’s polymer molecules to insert a skewer without popping the balloon. Do you think an inflated balloon pops out when you insert a skewer into it, as always? Of course, Yes! But there is a simple trick to insert a sharp-ended skewer into the balloon without blasting it.
Why does dish soap stab a balloon?
Balloons are made up from long chains of molecules called polymers, which are elastic enough to allow the balloon to stretch. A balloon is made up of molecule chains called polymers. The dish soap reduces surface tension on the balloon helping the skewer pierce it.
How to stick a pencil to an inflatable balloon?
Dip your pencil into a washing-up liquid or dish wash soap and spread it nicely using your fingers until its halfway. And then push it slowly inside the balloon by giving gentle pressure. Push it until it comes out from the other side of the balloon. That’s it; your pencil sticks to an inflated balloon without blasting or leaking air.