# What Will Happened To The Balloon When The Air Pressure Is Changed

In Glogpedia

by maraha22
Last updated 7 years ago

Discipline:
Science
Subject:
Experiments
1

What will happen to the balloon when the air pressure is changed?

Our Question

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Materials

Method

What did we do?

My Prediction

My Hypothesis

I believe that the paper we are to catch on fire is going to bust the water balloons causing the fire to be put out. I believe that the hot balloon will burst at a faster rate than the cold balloon. The balloons are to be filled where they will sit on top of the cup, but with my thoughts they will burst due to the extreme heat and the water will fill up in the cup.

Purpose:By performing this experiment, I will be able to show what pressure, paper, and fire can do to water balloons of different temperature when they are on top of a glass cup. 1.P.1 Understand how forces (pushes or pulls) affect the motion of an object. 1.P.1.2 Explain how some forces (pushes and pulls) can be used to make things move without touching them, such as magnets.

In the controlled experiment the ballon with hot water was tested. I lit the piece of paper on fire, which was 2 1/2 inches by 3 inches, and placed the burning paper inside the bottom of cup. The air that was already in the cup was being forced out resulting in smoke. I placed the ballon on top of the cup. This caused the air inside to seep out, but air coming in was blocked, like a one way valve. This cause the cup to "run out of oxygen" and the balloon began to get sucked (forced;pulled) into the cup. It took twenty-four (24) second for this process.In the manipulated experiment, the variable changed was the balloon. Instead of a hot balloon; the balloon water was changed to cold water. I began the same process as before. I used the same size of paper using a ruler to make sure. I then lit the paper on fire at approximately same distance away from the lighter, and placed the burning paper inside the cup. The cold balloon was placed on top of the cup, blocking the air once again. The same process began to happen, but this time it took thirty-four (34) seconds. Making a seven (7) second time gap between the balloons being pulled into the cup.In conclusion, my hypothesis was completely wrong . I predicted that fire would be too hot causing the balloons to burst. In fact what happened was the balloons were being pulled into the cup due to the lack of air coming into the cup, while the air that was already in the cup was being released. Once their was no more air in the cup, the fire went out and the balloon stopped moving or being pulled into the cup.

Step 1: I filled up the first balloon with hot water; enough water where it could sit on top of the glass jar.Step 2: After the first balloon (hot) was ready I then set a timer for ten (10) minutes to time how long it would take before something began to happen to the balloon.Step 3: I took a scrunched piece of paper and light it with the lighter.Step 4: I took the hot water balloon and sat it on top of the glass jar. Step 5: I had my grandfather hit the timer as soon as I sat the balloon on top and timed it until something began to happenStep 6: After getting the results for the first balloon. I manipulated/changed the temperature of the balloon to cold water and began the experiment again. Repeating steps 1 through 5.

Results

What happened ' Why?

glass cupballoons: one hot and one coldwater papermarkerlighter