We planned that we could have a simple design for our fins it is kind of shaped like a trapezoid. Also we added some weight or mass to our rocket Delilah and I, have added mass at the top of the rocket. Ashley’s rocket has no mass but we have slightly different materials Ashley has cardboard fins and I have poster paper fins. At first we chose to test our fins but then we have decided to test our mass on our rockets because we had the same fins. Our question we used to come for the hypothesis is, how does mass affect the height of the rocket, “if mass affects height then we use lesser or more mass on one of our rockets because we want to see if mass will affect the height at which the rocket goes, because Ashley’s rocket went 45 degrees and compared to my rocket which had a lot more mass than Ashley’s it went 60 degrees. We think our hypothesis is good, written properly.

**Procedure:**

We have tested the mass kept the pressure, fins size (height/ width), and the water level, all the same. The only objects we have changed is the mass and where we put the mass. We were looking to see if the area of where we put the mass would affect the height at which it would go.

We have tested the mass kept the pressure, fins size (height/ width), and the water level, all the same. The only objects we have changed is the mass and where we put the mass. We were looking to see if the area of where we put the mass would affect the height at which it would go.

We chose to graph it like a scatter plot because our height is spread out. We collected the data by someone getting the degrees of how high the rocket goes and someone timing the hang time, also the person went back 16m to find the degrees.

Mass and height scatter plot: this is our graph the one above.

Mass and height scatter plot: this is our graph the one above.

In relation to our hypothesis we were testing the mass to see if it would affect the height because we want to see if how much and where we put the mass would change how high the rocket went. Some problems we found out were that for one of our rockets the fins kept falling off so we recommend not to use hot glue, duct tape works fine. Testing helped us to find where we needed refinement on our rockets. We also recommend to others to stay with basic materials and not so expensive because your rocket might explode, get stuck in a tree, or land on the free-way.

The rocket on the left is mine, [Ashley] and the other one on the right is my partner's rocket, [Delilah].