Engineering Design vs. Scientific Method - EXIT POST (2024)

Roberto

9/8/2015 09:08:11 am

Engineering Design Process

1. Define the problem: What is the best way to build a homemade phone stand?

2. Do background research: Research different types of phone stands and materials different manufacturers used.

3. Specify requirements: I must define what I will need to construct my homemade stand and the materials I will use.

4. Create alternative solutions, choose the best one and develop it: I will then proceed to design various types of phone stands I can create, and choose one to develop it.

5. Build a prototype: I will then build the phone stand I choose.

6. Test and redesign as necessary: Testing my phone stand would be the next step. If it works, I will proceed. If it does not, I would rebuild it using another design.

7. Communicate results: My final step would be to communicate which design worked the best, showing my built product.

Caro

9/8/2015 09:09:03 am

Engineering Design Process

Frederic Tudor-
The Ice King

define the problem:
In the hot colonial summers, no one could benefit from the privileges of ice because there was no way to keep it in its solid form.

do your research:
Frederic Tudor researched ways to keep ice frozen in the hottest of temperatures so that he could make a business out of selling it.

develop a solution:
He decided he would look for an insulation method to keep the ice from melting.

design a solution:
After trying several insulation methods he found that packing the ice in sawdust kept it from melting.

build a prototype:
He bought his own ship and created a basem*nt where he could pack his ice in sawdust.

test it:
He tested the efficiency of his solution on a three week voyage to Martinique where he hoped to sell the ice.

evaluating your solution (question everything):
The ice survived the journey meaning his solution was accurate. However, he encountered another problem. When he got to hot caribbean countries, there was no way to keep the ice from melting there before he sold it. He needed to build an icehouse in the places he planned to sell so his product would last. His process was not over yet.

Ms. P

9/8/2015 09:47:07 am

Claudia

9/8/2015 09:10:47 am

Gaby

9/8/2015 09:14:49 am

Ana

9/8/2015 09:26:09 am

Scientific Method Example

1. State a Question or Problem: Cleaning up oil spills in the ocean

2. Gather Background Information: There have been several oil spills in the past decade that has negatively affected the environment and some species. Oil spills devastate wild life because the oil covers them (e.g. birds are not able to fly, fish can’t breath, etc.), as well as it damages our water resources and pollutes our planet. The biggest problem regarding oil spills is cleaning the oil from the water.

3. Hypothesis: If cellulose fiber is used to absorb the oil from the water, then it will decontaminate the water better (absorb more oil) than polypropylene fiber.

4. Design Experiment: Find which sorbent absorbs more oil in water
Variables:
Independent: Sorbent (cellulose fiber & polypropylene fiber)
Dependent: Absorption of oil
Control: Sponge
Procedure

5. Test Hypothesis

6. Analyze

7. Present results

Ellen

9/8/2015 09:28:49 am

Scientific Method

Define a purpose: Does radiation eliminate pimples?

Hypothesis: If you eradiate pimples, then after a week all of the pimples will disappear.

Experiment:
1.Find 20 people, with pimples, of the same ages (15-21), to test on.
2.Get a red light (laser-like) and a radiation machine with gamma rays.
3.Use the red laser light on 10 control subjects and the gamma rays on the 10 experiment subjects.
4.Every day for a week, scan the red light on the control people at a specific time.
5.Every day for a week, scan the gamma rays on the experimental people at a specific time (same as control people).
6.Take pictures of everybody’s face every day before the test. Record this data to later analyze it.
7.At the end of the week, take a picture of the 20 people’s face and report your results.

Analyze data: The first two days of testing, there was no change on any of the subject’s. The third day, there was visible pimple size reduction in the experimental people and no change in the control people. By the end of the week, the gamma ray users were almost completely clear of pimples, with the red light users still full o’ ugly pimps.

Conclusion: If you eradiate pimples, then after a week all of the pimples will disappear.

Results: Gamma rays visibly reduce the size of pimples after only three days of use. After a week of treatment, the pimples infused with radiation seize to exist. Use gamma rays to clear pimples off the foreheads of poor puberty stricken teens and young adults.

variables:
Independent- gamma rays and laser light
Dependent- pimples

Sofia Aldaz

9/8/2015 11:47:33 am

Scientific method

question: Do acids affect the color (yellowness) of teeth? What acidic drinks affect the color of teeth the most?

Materials: lemon juice, vinegar, co*ke, water, glases, teeth

Hypothesis: co*ke will affect the color of the teeth and turn it more yellower than lemon juice and vinegar.

Experiment & results
Put 20 ml of vinegar, 20 of co*ke, 20 of lemon juice, and 20 of water into different glasses
place one teeth in each glass
after 7 days take the teeth out of the glasses
compare the colors of the teeth
write down your results
analyze and report your results

Conclusion: Lemon Juice affects the color of teeth more than co*ke or vinegar.

Independent variable: water, vinegar, lemon juice, co*ke

dependent: the color of the teeth after 7 days placed in the liquids

Isa

9/8/2015 11:54:35 am

1. Define the problem: I need a water bottle that marks how much water I’ve drunk.

2. Do background research: There are many apps that tell you and water bottles that mark the amount of water they have inside, not how much has been into it in total.

3. Specify requirements: marks the amount of water the bottle has at that moment and how much has been taken out of it (drank out).

4. Create alternative solutions, choose, develop: Create different models with the standard measures of up to .5L or 20oz depending on which one is more visually appealing. Set up the technology that calculates the water taken out in total and a reset button (to start over for each day or according to the user’s necessity). Choose the one that is more visually appealing.

5. Build a prototype: Look for the materials necessary to build he bottle as well as the chip that will keep track of the water.

6. Test and redesign if necessary: The first couple of prototypes will probably not work or have spills that could mess up the chip. Keep trying models and remaking them according to what goes wrong in each trial of a day of normal usage (which would be the test).

7. Communicate results: Gather data of which one worked best, if there is more than one, and start final production.

Noelle Herrera

9/8/2015 12:08:16 pm

State the problem: What is best to remove pimples?
Background info: Pimples are formed by the infection of oils stuck in pores. To remove these antibiotics such as accutane is the best. Also proactive is informed to be the best product to remove acne but there are also multiple homemade solutions. Remember every face is different.

Hypothesis: If we apply proactive to a petri dish with a grown pimple bacteria then the bacteria will disappear completely.

Experiment:
1. get someone to donate their pimple puss.
2. get 10 petri dishes and apply the puss on each dish.
3. let the bacteria grow in a room with lights off and regular temperature.
4. a week later apply the different products being tested on the grown bacteria.
5. let the product and the bacteria rest for 1 week.
6. compare before applying the product to after the product.

Analyze:
-The product that removed the bacteria the most was clean and clear. It removed the bacteria to a 75% and proactive only cleared 25%

Conclusion:
If you apply clean and clear to your pimples then they will disappear.

results:
proactive is not very productive at removing pimples.

variable - independent- the products
- dependent- the pimple

Maria Luisa Hermana

9/8/2015 12:08:24 pm

ML

9/8/2015 12:10:26 pm

Leslie

9/8/2015 12:09:24 pm

An example of an engineering design would be doing a model to test the time of two different weighted balls with the same size.

1. Define problem:
See which ball takes the least time to finish the circuit. The one with less weight or the one with more.

2.Do your research:
My partner and I looked up for the reaction a ball has to different courses due to its weight and how the Butterfly Effect works out.

3.Develop solution:
My partner and I decided to build a circuit to time the results of which would go faster. We said it would be the heaviest ball.

4. Build a prototype:
We built a circuit out of recycled materials and made it so that it would stay the same each time a ball would be thrown.

5. Test it:
We tested the stability of the circuit, and made sure nothing moved as we threw the balls. We tested the time each ball took to end the circuit and jotted down the time each one took after five times of testing the balls.

6. Evaluate your solution:
We finally figured out that the ball with the least weight was actually faster not the heaviest which was due to how hard it went round and round in a cylindrical part of the circuit.

Anna

9/8/2015 12:30:57 pm

Scientific Method

Ask a question: Does whitening toothpaste work?

Background Research: Whitening toothpaste doesn't whiten teeth, but instead it may cause a resistance towards staining.

Hypothesis: If whitening toothpastes does work, then the most expensive will whiten the most.

Materials: Eggs, coffee, 4 different brands of whitening toothpaste, regular toothpaste, 5 toothbrushes.

Experiment & Results: Place the eggs in coffee over night. Take them out and each egg will be cleaned with one brand of toothpaste (one egg per toothpaste). Take note. The whitening toothpaste did not remove the staining while the regular toothpaste did remove some staining.

Conclusion: Hypothesis was proven incorrect because the whitening toothpaste did not whiten, instead it was the regular that did the most of the whitening.

Variables:

Independent- Toothpaste and Eggs

Dependent-The amount of whitening.

Melissa

9/9/2015 08:26:37 am

Gabriela Domene

9/9/2015 08:31:28 am

Lil Marie Alvarez

9/9/2015 08:50:47 am

An experiment that can be used in the Scientific Method is when you test the effect of music in babies’ growth.

1. Question: Can music affect a babies growth?

2. Second, I would search for background information about babies and their growth. I would also search for any similar experiments.

3. Hypothesis: If babies would listen to music daily, then there growth will increase.

4. Test out your experiment with available babies.

5. Then, analyze the data recorded on the babies and graph the music (independent variable) and the growth (dependent variable). You would use a bar graph.

6. Communicate results by presenting it.

Stephanie

9/9/2015 08:58:17 am

Nicolas Caimari

9/9/2015 08:59:38 am

Lorenzo Nicolas

9/9/2015 09:08:27 am

Jose

9/9/2015 09:01:04 am

Engineering Process

Define the Problem: What's the best way to make an unmeltable snowman?

Do Background Research: Research the chemical structures of ice, snow, and water to find a chemical that helps maintain their temperatures.

Specify the Requirements: Find out what chemicals you need to maintain the snowman's temperatures.

Brainstorm, Evaluate, and Choose a Solution: Byranian (Totally a legit chemical) keeps temperatures stable so I can use it to make the snowman.

Build a Prototype: Mix water with byranian (Or just throw it on your yard in winter, whatever), leave it outside to freeze.

Test and Redesign as necessary: Build a snowman with the byranian-infused snow, see if it melts when temperature (Unless you're impatient enough to try to use a hairblower on a snowman, you monster).

Communicate my Results: Lastly, I'd communicate my results and use my new Olaf as proof.

Marta Nicolau

9/9/2015 09:06:36 am

An example of Scientific Method can be "Testing the Effect of the Amount of Studying Time to your Grade".

1. Ask a question. How much time do you have to spend studying to have a good grade.

2. Do background information on studying hours and grade averages. Also, search for similar experiments.

3. Formulate a hypothesis. If you spend at least 3 hours studying daily, then you'll obtain a good grade.

4. Test out your experiment.

5. Analyze the data recorded and graph it. The hours is the independent variable and the results on the test is the dependent. You'll use a line graph.

6. Communicate the results.

Miranda

9/9/2015 09:13:02 am

Engineering Design

1. Define the problem: What is the best bridge to hold most weight?

2. Background research: Find out which type of bridge is known to hold most weight.

3. specify requirements: Find out how you could build different bridges and test them with weights fairly.

4. Brainstorm evaluate and choose solution: The truss bridge is considered the strongest. (Build a truss and a span to have a control group)

5. Develop a prototype: Build your bridges

6. Test your prototype: Place weight on bridges and calculate its capacity to hold weight.

7. Communicate your results: Did the truss bridge hold a specific amount of weight that goes near your goal?

Luis Emilio

9/9/2015 09:14:16 am

An experiment could be alcohol affects your brain.

1. What happens when you abuse alcohol?
2. Research on events of people abusing alcohol and what happens afterwards.
3. Hypothesis: I believe that is does affect because when you drink too much you're conscious of what is happening.
4. Test it
5. Then analyze and check your data to see if you're correct.
6. Afterwards create your conclusion.

Ms. P

9/9/2015 09:24:03 am

Don Juan

9/9/2015 09:14:51 am

Scientific Method:
question: Do the weight affect the trajectory of an object.

Materials: Spoons, rubber bands, paper, plastic

Hypothesis: Objects with larger weight and size will travel for a larger trajectory

Experiment & results
build your catapult
Build your objects
See how many centimeters did the object traveled
write down your results
analyze and report your results

Conclusion: objects with more weight travel faster

Ms. P

9/9/2015 09:29:08 am

Stella Wyss

9/10/2015 02:13:18 pm

Scientific Method:

Question: do mice grow larger if given vitamin C?

Research: information about mice, their diet and vitamin C

Hypothesis: if mice are given vitamin C they will grow larger

Experiment: two groups of mice- one gets vitamin C and the other doesn't

Observation: weigh mice after two weeks- both groups are the same size

Conclusion: hypothesis is not correct

Present your results

Dependent variable: growth
Independent variable: vitamin C

Laura Fidalgo

9/10/2015 02:31:34 pm

CN Tower

Define the problem:
The Canadians wanted to create a TV and radio communication platform to benefit Toronto area.

Do the research:
The Canadian National Railway decided to build a tower that not only provided radio and TV signal but also demonstrated the Canadian power and strength. The NCK Engineers planned and built the structure!

Develop a solution:
They decided to create an infrastructure tall enough to provide signal to the whole city as well as something beautiful enough that represented the Canadians' strength.

Design a solution:
The engineers decided to build an hexagonal core with three support legs in order to keep it stable. The vision deck became part of the project years later.

Build the prototype:
The engineers constructed the stunning skyscraper over a period of three years.

Test it:
They tested the efficiency of their tower! It was both stunning and it worked perfectly.

Evaluate the solution:
The CN tower is terrific! It is considered one of the most appealing architectures in the world as well as it perfectly fulfills its purpose.

Angel

9/10/2015 02:48:16 pm

Question

Does water freeze faster by itself or with the addition of sugar?

Research

Investigate data regarding water and sugar’s properties related with the formation of ice

Hypothesis

If sugar is added to water, then the freezing time-lapse will be shorter.

Experiment

Create a group of cups with water and addition of sugar

Create a group of cups with just water in them

Place both groups in a freeze for a determined period of time

Analyze Data

Compare both groups and determine which freezes first daily and record data.

Conclusion

Hypothesis was accepted.

Share Results

Independent Variable: Sugar

Dependent Variable: Water

Nika Zhukova

9/10/2015 02:49:35 pm

Scientific Method:
Ask a question: Which citrus fruit (limes or oranges) conducts electricity the best?
Do background research: Limes and oranges can generate electricity when they are properly connected in a completed electrical circuit. If well connected they can light up an LED.
Construct hypothesis: If a Lime battery is created, then it will conduct better electricity than an orange battery.
Test with experiment: Connect limes with negative (zinc nail) and positive terminales (copper penny) and record data, then do the same thing with the oranges. Check if they have enough voltage to light up the LED.
Gather and analyse results: Create tables to show the different trials and amounts. Also, for this experiment we made trials of limes and oranges together to get a higher voltage. We saw that the Oranges conducted much more voltage than the limes.
Create a conclusion: The hypothesis was proved wrong because oranges had better conductivity than Limes.
Communicate results: In a scientific report or science fair :) (we won first place yay)

Dependent variable: Voltage
Independent variable: Amount of citrus fruits

Celeste

9/10/2015 02:53:47 pm

Scientific method
1. Ask a question: Do plants grow faster indoors or outdoors?
2. Do background research
3. Hypothesis: If plants are outdoors then they will grow faster.
4.Experiment: Measure 5 plants indoors and 5 outdoors during 2 months.
5. Observation: During the month the plants outdoors grew more. measured in cm.
6.Conclusion: Hypothesis was correct.

Luu

9/10/2015 02:54:57 pm

Scientific Method

State question: What makes ice melt faster?
Do background research
Formulate hypothesis: Salt will make the ice melt faster
Dependent Variable:the rate at which the ice melts
Independent Variable: materials being used to melt the ice (salt, sugar, sand, nothing)
Conduct your Experiment: Put different substances in different bucket full of ice and record which one melts the ice faster
Collect and Analyze Results (Graphs):
Conclusion: SALT MELTS THE ICE FASTER
Communicate the Results