Today I printed out my charts that contained the data from my launch.  Each chart contained the pressure of the rockets, amount of water, gravity, weight, etc.  I have already started putting together my board and I am nearly finished.  I just need to glue down some things.

Today I started working on my design for my poster board.  I pretty much know already how the layout of my board will be, but I am putting it on paper so I can work out any kinks.  I also started my powerpoint this weekend.

Last week I found a problem with my launcher.  When I tried to launch my first rocket, the pressure was not strong enough, even though all my calculations showed that it should have been.  Then I found out wh it wasnt working.  It was because my non return valve (The valve that keeps the pressure from returning) was not sealed completely.  I was not sure how to fix this, but today, I figured out how to do so.   By using a mixture of apoxy glue it should be able to keep the valve sealed.

Today I used a simulator to expect how high my rockets should go.  I made 2 rockets (both the same) because I will not be using parachutes.  Trying to figure out an effective parachute and how it wont effect my height and launch would be to complicated and time consuming.  I had to delay my launch this past weekend and move it to the middle of this week.

Today I researched different fin designs.  Although I already have my rocket completed, the fins are a bit big and bulky.  So I found another design i can use, and luckily I will only have to make some minor adjustments to my rocket.  Other than that my rocket will be perfectly fine and I will be launching on friday.

Today I found the scale I need to measure the mass of my water.  I already have my measurements so finding the water in KG should be fairly easy.  Also I have my launcher and my rockets built so other than putting together my project board I should be finished by the end of the week.

Today I had to figure out how much water I needed to use for my rocket.  I already had the amount in water, but I had to convert it to volume.  To do this I had to use the equation for volume, which was:
Volume=Mass       .  I also changed the amount of water used in my second rocket from .99 kg to .66 kg
               Density

Today i found out how much water use and how much pressure that is needed to launch it.  I used a simulator to enter in the preesure, water in kg's, gravity, etc.  I did this for a second rocket variable aswell.  Doing this helped me to determine how much pressure/ water i will use in my final test.

last week i found a design to start building my rocket launcher.  It is called the Gardena launcher, and it is a common design used by people.  Although, there are a few upgrades that have been made to htis launcher that might possibly help the outcome of the rocket.  One of these things is the three guide poles that help to shoot the rocket in a straight path.

On our first day of work, I found out a few helpful facts abou water rockets.  1.The rocket uses 2 of newtons law.  Those being F=MA, and "for every action there is an opposite and equal reaction".
2.The built up water in the rocket allows it to push off of the ground and the pressure pushes it the rest of the way in the air.