Blowing Up Balloons With CO2

What you'll need: Balloon About 40 ml of water (a cup is about 250 ml so you don't need much) Soft drink bottle Drinking straw Juice from a lemon 1 teaspoon of baking soda

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Instructions: 1. Before you begin, make sure that you stretch out the balloon to make it as easy as possible to inflate. 2. Pour the 40 ml of water into the soft drink bottle. 3. Add the teaspoon of baking soda and stir it around with the straw until it has dissolved. 4. Pour the lemon juice in and quickly put the stretched balloon over the mouth of the bottle. What's happening? If all goes well then your balloon should inflate! Adding the lemon juice to the baking soda creates a chemical reaction. The baking soda is a base, while the lemon juice is an acid, when the two combine they create carbon dioxide (CO2). The gas rises up and escapes through the soft drink bottle, it doesn't however escape the balloon, pushing it outwards and blowing it up. If you don't have any lemons then you can substitute the lemon juice for vinegar

Fun with Gas - Make Carbon Dioxide to Blow up a Balloon
Sign up for our FREE Newsletter to Learn More Great Science Experiments! Materials Balloons Small funnel or a small piece of paper rolled up in a funnel shape

Fill each bottle 1/3 full with vinegar Without dropping in the baking soda. The gas then blows up the balloon. Screaming Balloons The science sound that's sure to drive parents wild! (1 Reviews) Here's an easy-to-do experiment using only a balloon and a hex nut from the hardware store. "STOP!" Be sure .Baking soda Vinegar Small clean empty bottle Directions Using the funnel. add 3 teaspoons of baking soda to each balloon. fit the balloon over the bottle opening Hold up the balloon and let the baking soda fall into the vinegar Watch as the baking soda mixes with the vinegar to make carbon dioxide gas and blow up the balloon What's Going On? The vinegar mixes with the baking soda to create a chemical reaction that produces carbon dioxide gas. This is the perfect science of sound activity because kids will love it and parents will be left shouting.

to buy enough supplies for all of your friends. Grip the balloon at the stem end as you would a bowling ball. and these flat edges cause the hex nut to bounce or vibrate inside the balloon. The hex nut circles inside the balloon due to centripetal force. use your other hand to stabilize the balloon.. as it will easily burst. 3. DO NOT let your parents read this! You'll find that your balloon is always popped! Why. but be careful not to overinflate the balloon. The hex nut may bounce around at first. but it will soon begin to roll around the inside of the balloon. you'll see. Your hex nut should continue to spin for 10 seconds or more. y y y y y y Squeeze the hex nut through the mouth of the balloon. Once the hex nut begins to spin. Does the marble make the balloon "scream?" Experiment with other objects whose edges may vibrate against the balloon. . The neck of the balloon will be in your palm and your fingers and thumb will extend down the sides of the balloon. Make sure that the hex nut goes all the way into the balloon so that there is no danger of it being sucked out while blowing up the balloon.. What happens when you change the size of the balloon or the size of the hex nut? Try using a marble instead of a hex nut. 5. While holding the balloon. 1. Tie off the balloon and you·re ready to go. you may ask? Keep going. 4. How does it work? This is actually a 2 for 1 experiment . A hex nut has 6 sides. The screaming sound is made by the sides of the hex nut vibrating against the inside wall of the balloon. Centripetal force is the inward force on a body that causes it to move in a circular path. Blow up the balloon. What is that sound? Could the balloon be screaming? The sound every parent loves. swirl it in a circular motion. 2. This is also the perfect Halloween experiment for making spooky sounds. y y y y Email Print Materials Clear latex balloons (9" to 11" balloons from a party store work great) Some 1/4" hex nuts from the hardware store Experiment Video Related Experiments Reviews Warning: If you are a kid. palm down... It is a "center-seeking"·re learning about the science of motion and sound.

y y y y Email Print Materials 1-liter bottle Latex balloons Rubber stopper or cork Water Nail Hammer Experiment Reviews 1. The Screaming Balloon makes for a great Halloween party giveaway or a fun science experiment for teachers to do in class. screaming cup and uncover the secret of "stick and slide" to create a vibration. how hard would it be to inflate a balloon in a plastic soda bottle? Hey. While the penny spins beautifully inside the balloon. no big deal. y y y y y y y y . Steve Spangler will show you how to be amazing.. Balloon in a Bottle How hard would it be to inflate a balloon in a plastic soda bottle? (1 Reviews) Some things look so easy until you try them. Case in point. Slip the balloon inside the neck of the bottle and stretch the mouth of the balloon over the bottle top. Additional Info Learn how to make a spooky. That's until you realize something about the properties of air.. Don't worry. It's also fun to experiment with a sound hose to make other "spooky" Halloween Sounds... the ´spookyµ sound is gone.To prove this. repeat the experiment using a penny in place of the hex nut (see The Spinning Penny experiment) . Just put the balloon down inside the bottle and puff away.

For the air to flow. 4. There's no room for the balloon to expand inside the bottle. uncap the bottle. Pour water into the balloon while keeping your thumb over the hole. Suppose your thumb gets tired while the balloon is inflated. when you punch a hole in the bottle. Take a deep breath and try to blow up the balloon inside the bottle. Quite a difference! Blow hard until the balloon fills most of the bottle (a little water left in the bottle helps). They're pushed out as the balloon fills the space inside. Put a cap tightly on the bottle and remove your thumb. outside air flows back into the bottle as the balloon collapses. However. when you filled the bottle with water. both holes have to be open. 5. Place a finger (or thumb) over the nail hole when you stop blowing. then seal it with a cap. move your finger. By the way. the air molecules in the bottle have an exit. close to the base. soft water could give that much support? Try this! Inflate the balloon in the bottle again and cover the nail hole with your thumb. Good luck! Remove the balloon. Because of the elasticity of the rubber or latex. you made its walls more rigid and it was easier to push the nail through the flexible plastic. As long as you plug the hole. How does it work? The balloon won't inflate much the first time because the bottle is already filled with air. fill the soda bottle to the brim with water. the balloon stays inflated. Who'd ever think that flowing. When you take your thumb off the hole. 3. Place the balloon in the bottle again (Step 1) and try to blow up the balloon. Ask an adult to punch a small hole with a nail and hammer in the side of the bottle. and empty the water out the top. Remove the nail. 6. Watch out for that stream of water gushing out of the bottle top! You might decide to hand a full water-balloon-bottle to a friend and just "forget" to tell them about the hole. How would more holes or even one large hole change the speed of inflating and deflating the balloon? What would more or bigger holes do to the stream flowing from the water-balloon-bottle? Try it out! Balloons and bottles make a great science combo! Bed of Nails . the balloon shrinks to its original size as the air rushes out the top of the bottle.2. You are too cool! Now. Go outside or hold the bottle over a sink before you remove your thumb.

Show your audience that the nails are sharp by easily popping the balloon with a leftover nail. Now. a board for the top that slides on the dowels. blow up another balloon and place it on the bed of nails.. y y y y y y y y . you can see the science behind the trick. blow up one of the clear balloons.. but what is the secret? Using a smaller version of the bed and a clear balloon. 3. 2. Once your contraption is complete. visit the Arizona Science Center in Phoenix! Experiment Video Reviews 1. 4. and a smaller board with the 99 nails hammered through the bottom. y y y y Email Print As Seen on the Ellen DeGeneres Show! Materials Steve made his Bed of Nails with materials found at the local hardware store: 3 pieces of wood . You will need a board on the bottom (with the two wooden dowels attached to it).The science behind the famous trick! (Submit Review) You may have seen your favorite circus performers or magicians perform the classic Bed of Nails Trick. Start by making your bed of nails as shown in the video.two pieces about 3x6 and one piece about 2x4 2 wooden dowels about 10 inches long 100 nails Clear balloons Hammer For the full Bed of Nails experience that Steve demonstrated on the Ellen show.

5. all of the pressure is concentrated on one point on the balloon so the balloon easily pops.. When you place the balloon on the bed of nails.. some water. How does it work? When you pop the first balloon with the nail.. Instead of using a paper bag. this modern day version of the demonstration uses an ordinary balloon. Put the top board in place and start pushing down on the balloon. Take your bows and blow up another balloon. your audience won't believe their eyes! At some point the balloon will not be able to take any more pressure and will pop when you push hard enough. the secret lies in yet another amazing property of water . their body is evenly distributed across the surface of the nails. the pressure points are spread all across the surface of the balloon. It's a combination that's guaranteed to make people stand back. Just like the balloon. 7. it shows your audience that you weren't doing anything tricky! There's no doubt that everyone will want to see this feat again. y y y y Email Print . but this classic parlor trick was a favorite of the Victorian magician. The real difficulty in performing this effect is making it look harder than it is! As you might imagine.its ability to conduct heat. You can push pretty hard on the balloon before it ever pops. The only real danger of being punctured by a nail is if the performer doesn't lie down or get up correctly and pressure points of the nails are concentrated on one area of the body. Now you know the circus secret! Fire Water Coolest Conductor of Heat Can you really burn a balloon without popping it? (1 Reviews) Common sense tells you that it's impossible to boil water in a paper bag. that's okay. when a person lies on a bed of nails. and a candle.. 6.

firefighters in Colorado often use a polymer foam to control large wildfires. what·s that dripping from your armpits? EWWW.. and the balloon remains undamaged. In fact. y y y y y y y y 1. Hold the balloon a foot or two over the top of the flame and slowly move the balloon closer and closer to the flame until it pops. try to figure out why the layer of water kept the balloon from popping. it·s sweat! But your body actually uses the . 2.. Remove the balloon from the heat and carefully examine the soot on the bottom. When you exercise. there's soot and the balloon didn't pop. Blow up a balloon just as you normally would and tie it off.. 3. If you accidentally let go of the balloon before you tie it off. Slowly lower the water-filled balloon over the candle and watch as people start to run. 2.. You'll notice that the flame doesn't have to even touch the balloon before the heat melts the latex and it pops. the exchange of water happens so often that it keeps the balloon from ever popping! The soot on the bottom of the balloon is actually carbon. This cooler water then soaks up more heat and the process repeats itself. The thin balloon allows the heat to pass through very quickly and warm the water. Just tie off the balloon and get ready for the next step. Put on your safety glasses because it's time to pop the balloon.. The carbon was deposited on the balloon by the flame. Experiment Video Reviews 1.. How does it work? Water is a great substance for soaking up heat. Since polymers soak up a tremendous amount of water. Yes. Using water to control heat is a valuable process. you'll spray yourself and your friends will love it. If you're very brave. Let's repeat the experiment but this time the bottom of the balloon will have a layer of water inside. As the water closest to the flame heats up. Everyone knows that it's going to pop. Fill the balloon to the top with water ² it probably holds a few ounces (60 mL for the scientists) ² and then blow it up with air. they are useful in controlling and stopping the heat energy in the fire.Materials Safety glasses Balloons Water Matches Candle Warning! This science activity uses matches which means you need to find a very cool supervising adult to help with this experiment. In fact. you can actually allow the flame to touch the bottom of the balloon and it still doesn't pop. Your body even uses water to control heat. Light a candle and place it in the middle of the table. it begins to rise and cooler water replaces it at the bottom of the balloon. 3. Before reading the explanation. but for some strange reason it doesn't. Let's just say you had to prove what you already know.

water in your sweat to control your internal temperature so you don·t get overheated. .

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