Our group changed the fins of our rocket because most other groups fins were small and went really high. That made our group thought that if we make the fins smaller, our rocket will go higher than the first launch. Also small fins would make the rocket lighter so that would also make it go higher than the first launch.

When we designed our second rocket some things went well and some things did not.. What went well was our whole group agreed to change the same thing right away. We all had the same idea, so it was really easy to decide what we were going to change on our second rocket. What did not go that well is our group also wanted to change some other things, like the nose cone. We can only change one thing though so we desighted right away that we were going to change the fins.

What went well with building our second rocket is we built the body fast, so we had more time to make the things that were harder, like the nose cone. We were able to do that longer, so it is better. What did not go well, is we did not all agree on the fins and which ones we were using. Someone thought we should not use the fins I made and we should use the ones they made. We ended up using both.

We collaborated on our design. We also took the time to collaborate on our fins because we smoothed them out to make them even. Also because we did not want our rocket to be really bumpy when the rocket is going up in the air. Our group compromized when we disagreed. When we did not agree on the fins we used both fins that both people made.

We launched our second rocket and it went a lot higher than I thought. Our first rocket did not go that high, so I was really happy that our second one went much higher than the first rocket. We worked hard on our secod rocket, even if our group did not agree on some things.

What stood out about our rocket launch is it went a lot higher than the first one and it went straight back into the ground. My job was to push the launch button. I liked doing that becuase you basecly get to control the rocket and as soon as you press the button, it launches up in the air. I liked being a cinometer reader because you get to find out how high that groups rocket went. 

Our rocket went so much more than the first launch. It went 126 feet. We will change the fins to cardbord so we can see if that changes our rocket, even though we are not building a third rocket. We collaborated becuase we all did our jobs for the rocket launch.

Our group worked together well and our rocket went really high, and if we did a third rocket, I think that one would go higher than the second one! 

Designing and Builded Rocket

For the design of our rocket we chose the nose cone to be sharp so that it can cut through the air easier and it can create a path for the rest of the rocket to go through. We choose the fins to be a triangle so the air can slide down the sides. We choose a thin rocket so it can be less weight. We wanted to do the fins with styrofoam so they are sturdy and they can not really flop over like cardboard. We decided to cover almost everything with tape so that everything is more sturdy but we did not want to add too much tape to the rocket so it is less weight and it will get off the launcher.

When we were building our rocket, our group did not agree on a lot of things like what tape we were going to use. Our inspiration board helped us because we wrote some materials that we would use so we looked at that. When we were building our rocket, we all wanted to do everything on some things that only one person can do, that the fin templates and taping the rocket. We agreed on somethings though, like how big the fins will be. Sometimes two people wanted something but the other two people wanted something else, so we had to sometimes compromise, and sometimes we had to pick the best way to do it.