We origionally thought that we could pressurize the white bottle, then cut it off and use it as a cone. Then we realized we could use the second green bottle instead.
First we made the fins. We made sure they were all equal. We took two fins and hot glued them together to make it more sturdy.
We sanded the bottle to make it more aerodynamic in the front. We made it smooth.
We cut the second bottle's cap and bottom off. We put clay in to seal the hole.
We put the actual rocket into the cone. We wrapped it in duct tape to secure the two together.
We chose the slim green bottle over the vitamin water bottle because it is a more aerodynamic shape, and to create a more unique idea than most other groups using the other bottle. Originally, we were going to use the bottom of the vitamin water bottle for the cone, but Mrs. Cheney gave use the idea to use the spare green bottle we had, and cut the top off to create part of our top. We then cut out near the top of the part, and inserted clay in the hole to stabilize the nose. Finally, we made it more aerodynamic by sanding down the side of the nose to create less drag.
ReplyDeleteGreat ideas, girls! Nice job journaling the process of building your rocket. Keep it up!
ReplyDeleteThanks Mrs. Cheney. We took the pictures from the laptop webcam. It was a lot less confusing than using a camera.
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