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=__**// Please Read through the unhighlighted part and time yourelf, to see how long it comes out to be!!! AND MAKE THE ROCKET! //**__=

Introduction, show video of water rockets in Prezi. 1.5 minutesThis will basically say what we are doing, and the video will make people pay attention, so we need a big cool video. Talk about history of rockets (mainly water if we can) using Prezi. Jacob leads this. (rocketry history tab) 1.5 minutesSince it was hard to find information on water rockets, this section may be shorter than planned, but basically talk about water rocket history and touch on the other rockets that shoot up really high. Next, General information using the prezi and maybe model rocket thing as a model. Lead by Angus3 minutesThis will be basically a broad version of what we are going to explain later, talking about water rockets and how they launch, and what they are made of, just don't go to in depth, otherwise we will be repeating ourselves later. Next we will talk about the construction/how the rocket works and a little into pressure, combining the two headings. Lead by the best group leader in the world. (Garrek) Demo rocket and video. 4-5 minutesThis section will be going in depth from the last one, it will talk about the construction of the rockets and how it works, using a demo to show this. This will include the most information, and we need to get it right. We will also show a video here, preferably of a rocket that angus and jake made. After that we will do why you use water, which we can all talk about. 2 minutesThe title is self explanatory, we will just say why you use water over other substances, because of the mass and force and all that happy stuff. Finally, we will summarize everything using a nifty power point. 2 minutesWe will summarize the presentation and maybe hint our after questions, also doing a little quiz if we want. Maybe we could combine these...... G: Hi its Garrek A: and Angus J: and Jake G: and we are going to fulfill all the knowledge you ever would need to know about water rockets. J: Now, here is a video of what a water rocket is, in case you didn't know. Play video A: Now you have a good idea of what a water rocket looks like and what it does. J: Now we are going to give you a little history of rockets. A: Solid Fuel Rockets were invented in the 13th century by the Chinese, and, as all new ideas, they kind of failed. But, they created a base for something now used from hobbyists to the military. G: You see, they were basically bamboo tubes with something like gunpowder inside, and, they often exploded or didn't launch so good. But, the Mongols soon started tinkering with rockets and then finally, the Europeans made a much better model. J: Finally, this was all combined to make other offspring, such as fireworks, and, obviously, water rockets. There is the family tree of a water rocket, which was invented in 1930. The first known water rocket was actually a champagne bottle, but this doesn’t work very well, because glass breaks quite easily. Now, they are made of soda bottles, which started being made with Polyethylene Terephthalate, which was introduced to the bottles in 1973. A: Alright, we are going to talk about how water rockets work, what they are made of, and other tidbits. G: Well, a water rocket is just basically a soda bottle with water and compressed air in it. Fins and a nose cone are often added for stability and performance. We will go into this more later. J: Now, here is our rocket we built, as you can see, there are fins, a nose cone, and it is made of a simple two liter bottle. They can be made a lot more complicated, but this is the simple way to do it. G: Next, we are going to talk about the construction of the rockets, how they launch, and some other things. Well, as we said, water rockets are just a two liter bottle, with fins and a nose cone. Again, they can be much more complicated, but this is 7th grade. A: If you want to see a complicated picture, look at this one! (Show pic in prezi) à <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">That isn’t actually too hard to do, it is just very tedious, but, as you see, there are all the basic components of a water rocket, fins, a nose cone, and obviously bottles. They have so many bottles, because more bottles can greatly increase the power of the rockets. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">J: Well, you may have been wondering how the rockets actually launch. Well, that is actually quite simple. But, again, you can make it quite hard. We will show you the simple way again, using PVC pipe, and an air compressor. Basically, you make a PVC base that looks like an H, then a pipe coming out of the middle of it. Like this à <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">G: In that, all the air compresses, and it goes into the bottle. At the end you see a red arrow pointing to a piece. Well, that piece is a inflation tube, like you would see on a bike tire or a car tire. This is used so pressure cannot escape the PVC tube, just like it is used in a tire. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">A: Well, now we are going to talk about why you use water in the water rockets. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">J: Well, this is kind of hard to explain, but basically, there is more mass pushing out of the bottle, giving it more force to go up. This is just like; it takes a lot longer for a dump truck to stop, because it has a lot of inertia, vs. a small car. Now, with this, you need to factor three thing, thrust, drag and weight. Well, thrust is basically the force the bottle has, so you want a high thrust, and the bottle should fly very well, drag, we haven’t discussed this much, but it is basically how aerodynamic the bottle is, this is why you put a nose cone on, or friction. Now finally, weight, which is a big part of this section, because too much water, the weight will be to high, so it will not fly very high. Well, as we said in the intro video, you want an air to water ratio of two to 0ne. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">G: Ok, so basically what you are saying is the water creates more force, giving the bottle more force? <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">J: Yes, exactly. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">A: Now, we are going to summarize our whole presentation into one nice little section. <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">G: Well, water rockets are soda bottles, made to launch into the air with water and pressurized air. They launch anywhere from 5 meters to 100 meters, with the world record being 623 meters! The first water rockets were champagne bottles, and the Chinese invented the first solid fuel water rocket in the 13th century. Soda bottles are now made of Polyethylene Terephthalate, which is a very lightweight and strong material. The main aspects of water rockets are drag, thrust and weight. Water is used to create more thrust, <span style="font-family: "Times New Roman","serif"; font-size: 15.99px;">J: Any questions?