In the first week, I will talk about what is gas law.  Gas law such as  boyle's law , Charles's law and combined gas law. In this video, I will talk about  who invent the gas laws and the relationships found in the gas laws. 

For the second week, I will talk about little bit of history of hot air balloon such as the first passengers and the scientist invent the hot air balloon. After that , I will also explain why Charles' law apply in making  a functional hot air balloon.

In the following two weeks, I will talk about timeline of history of hot air balloon in detail.  The 1st video will talk detail such as the first passengers given the name by royal family,  first long-distance balloon flight and so on.

In the following week, I will talk about what year the propane burner was used where this has changed the old method ( gas power). Development of new synthetic material start to become one part of hot air balloon. This can be see as paper cotton is not rarely see in modern era. 

In the fifth week, I will use plastic bag to make a mini hot air balloon. In this video, I will use straws to make skeletal support in order to stretch the plastic bags. The skeletal support will in X -shaped. By doing so, oxygen gas can enter in to allow combustion process occur.

In the following week , I will use 4 small birthday candles and stick them on the small piece of paper. This is to make the burner for my previous hot air balloon. At first , I stick 4 candles on the aluminium foil. However, the candles are eassily fall down. That why I change it to paper.

In this video, I will attach my burner to make a complete hot air balloon. After that , i will try to let my hot air balloon fly . Unfortunately, the hot air balloon unsuccessful to fly. This is because of the flame that produced by the burner is not strong enough to produce enough heat. Thus , the heat produced is not less dense than the outside cold air. Thus, hot air balloon I made is unable to fly.

In the following week, I start to use non-biodegradable plastic as my material to make my hot air balloon. First, I also use the straw to make a skeletal support. For the 4 corner of plastic, I use rubber bands and wrap the straw. So, this will let the straws not easy to fall down. 

For the burner, I will use paper cup which the paper cup will be wrapped by aluminium foil. The fuel used was the cotton spray by alcohol ( hand-sanitizer). By this, flame produced become bigger and also the light  hot air balloon can be made.