Today in class we did an activity that was called Nerdy Derby. The activity was when we got to make our own little cars and race them. I did mine with my best friend Samantha and we made ours very pretty. We called it the Color Convertible because we covered it in rainbow order pom poms. While making the car we had to learn how to construct a car and make the wheels be stable. To put the wheels on we had to use these things called axes which were almost little skinny straws and you hot clued then to the bottom of your car. We needed them because the wheels wouldn’t be able to move without them because you had to stick them on. After everyone had made their cars and designed them, we got to race the cars. Ours was very fast and I am guessing it was fast because it didn’t have much weight on it. Except it made me think because we raced a car that had a million heavy things on it and that car beat us. I was wondering if maybe we did need a little bit of weight. We didn’t add anything though because we loved how ours looked and if their was a beauty contest, ours would totally win. (In my opinion)
In science we are studying all about pollution and the importance of clean water all around the world. So, we made groups and each group is supposed to design a filter that can make the water a lot cleaner. Everyone in the class started off with trying out three different materials that can filter the water. The first material we tried was a screen. I had doubts about the screen because it had big holes in it so all of the bad contaminants would just go right through with the dirty water. I was right because nothing changed when we filtered it. The next filter we tried was a coffee filter. I was very excited about it because I had a feeling it would work. It would definitely take out a little bit of color and also take out the microbes. This one worked but not as well as I thought it would. I don’t think it worked because it was very thin so it didn’t absorb lots of the color. After that we tried out sand and gravel. They are two materials but they had to be together to work as a filter. This one worked the best. I think it worked the best because it would first go through the sand which would soak up some of the microbes and some of the color, but when it when through the gravel it took out all of the microbes that were left.
After trying out all of those we had to make a design. Our first design we were proud of but when we started talking about it we realized that it wouldn’t work. We recognized that our first design wouldn’t work because it had way too many materials that would just absorb all the water and not come out. So we made our second design and we knew that it would work.
When we started making the filter I made a mistake and took the stopper out of the bottom of the bottle. It made all of the sand and gravel we put in fall out. It was a huge mess!!! That was one of our biggest struggles. Our design was at the bottom of the bottle it and gravel and on top of the gravel it had some sand. On top of the sand there was a coffee filter. We thought that that would get some of the color out of the contaminated water. At the top of the cup we put some of the screen and in the screen was some gravel to add some purpose to using the screen. When we tested this filter, the filtered water was graded a three out of one to five (five being the worst and one being the best). It took out all of the microbes but didn’t fully take out the color of the water.
After that we made a second design. My group thought that using cotton balls would soak up all of the color. So our next design used the materials cotton balls, coffee filters, and gravel. I had more faith in this design than the last one because of using the cotton balls. The cotton balls were a great addition to the filter. When we tried out this filter it did work, but then we had the idea to use the filtered water we just made and then put it through the process again (our water was double filtered). That made it even better. This water was a two and very close to being a one. I think that if we kept on going it would have been completely filtered. Overall both designs were really good and it was a great experience and really made me think about how I could filter water.
Documenting is an important part of the process.
When I was launching I used a trundle wheel to measure where we should read the clinometers. I had to walk fifty meters out from where the launch pad was in the field.
The launchpad used a pump for the fuel. We had to put two hundred and twenty milliliters. All the fuel we actually needed was two hundred milliliters, but when you put it on the launch pad a lot of water came out.
We used a rope when we were launching. The rope connected to the launch pad which connected to the rocket, and when you pull the rope, the rocket will fly.
What I learned while doing this project is using a clinometer. What I learned is when you use a clinometer, you cannot start at the ground, you have to start at eye level.
Everybody at jobs. My job was to count out fifty meters using a trundle wheel. During this project I learned what a trundle wheel is, and how to use it.
Looking at the graph, my group the Rocketeers got 48.5 meters as our average height of the rocket. While figuring out our average we had to read each four numbers and then see which one was the outlier. My groups outlier was thirty meters. We figured that out because all of our numbers are forty three, forty five, thirty which was our outlier and forty six. We figured that thirty was not as close to all the other numbers.
My questions for this launch are:
- How could we make our rocket go even higher?
- What other materials can we use for our nose cone?
After doing this launch I was proud of myself and my group and think that we can do even better on our next launch.
When my group built our rocket we started off with getting a one liter bottle. When we got the bottle this is what we did!
With our bottle we put lines on with a sharpie where we would hot glue the wings on, and with the lines we sanded it so the hot glue will stay better when connecting the wings.
My group chose to put blue and purple stripes on our rocket. We chose these colors because the girls in my group liked purple and the boys liked blue. That’s how we compromised.
When making the wings we used a Styrofoam sheet. We drew a temp let of the correct measurements and used that temp let to cut out the wings. The when we cut them out we also covered them in duct tape.
For the nosecone my group chose to 3-D print a nosecone. We designed it on a website called Tinker Cad. On there we got a shape and did the width and the length of the right measurements of our rocket.
This is our final rocket design.
This year in science we have done info graphics on Isaac Newton. In the process we had to first do all the research on him that we could, and then we had to do a prototype about him. At this phase we are making another prototype on google drawing. A info graphic is a combination of images and text. Also decorations!
In my info graphic the categories are “early life, adult life, quotes, inventions, three laws of motion, and lot’s of pictures. For the pictures every single one had a back round that made it relate to rocketry. For example I put a picture of the world. That related to Isaac Newton because he discovered the gravitation of the world. I also put an apple because of the myth when the apple falls from the tree onto his head. For the tree laws of motion I explained each one and told how they relate to rocketry because we are also doing another unit science that is about rocketry.
That is basically what an info graphic is, and what mine is about.
This year in science we are building rockets. My groups name is The Rocketeers. We get to build with bottles and other materials. My group is using Styrofoam for our wings and covering it in duck tape.
What am I Proud Of?
I am proud of designing a very cool looking rocket. I am also proud of my group for making progress in designing each and every part of the rocket. I am also proud of my group for all working together. For example when my team had to decide what kind of wing shape we wanted, we all drew a couple in our notebooks and then we all decide which one would make the rocket go high.
What Frustrated Me?
Something that frustrated me was that my group wasn’t using teamwork 100% of the time. It also frustrated me that very minute there seemed to be something to disagree about. Also my group did the wrong measurements for our poster so we had to start over.
What I’m Looking Forward To
I am looking forward to 3-D print the nosecone for my rocket and I’m also looking forward to finishing my rocket. Another thing that I’m looking forward to is launching my rocket. Especially seeing if it explodes while launching it, or stays perfectly fine.
Overall I’m excited to launch my rocket and see how it turns out!