The topic I am researching is: “Does applying hair spray damage your hair and affect the strength of the hair compared to the ones that are not hairsprayed?” I will be testing the durability of hair with hair spray or without hair spray.
For an experiment to be a scientific experiment (and research), it must have all the elements of the scientific method. The first requirement is to make observations. In this step it is required to gather general information by using senses. The second part is to state the question of the experiment. It must clearly state the independent and dependent variables, along with the actual question. It should also explain what the variables are affecting. The third step is to do some background research. In this
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After taking the notes, the fourth step is to construct a hypothesis. The hypothesis is a testable explanation for an observation. It must be an educational guess. Following the hypothesis is the experiment and data collection. In this step the topic is planned out then an experiment is conducted. Planning before conducting an experiment is very important because the hypothesis can be tested under controlled conditions, so less mistakes and accidents happen to avoid harm and danger. Data is the information that a scientist gathers from an experiment with very specific numeric details and close observations recorded from the experiment. If the procedure did not work, go back and re-experiment with a new set of procedures. Step number six is to analyze the data collected from the previous step of experimenting and draw a conclusion. If the conclusion matches the hypothesis, then the next step is to communicate, or publish the results of the experiment. If the results only partially aligns with the hypothesis or does not match the hypothesis at all, the experimental data becomes the background research for a future project. In the future project, the data from this …show more content…
I use a large amount of hair spray for my ballet shows and recitals. Everytime I use hair spray, the next day my hair seems a little more “puffier” than normal days. I think the reason is because the hair spray damages (or worsens the already damaged) hair cuticles, and the other active chemicals of the hair spray seeps through the damaged hair cuticles to the internal structure, which affects the hair to become less stronger. The question is “Does applying hair spray damage your hair and affect the strength of the hair compared to the ones that are not hairsprayed?” The manipulated variable of this experiment is the amount of hairspray. It is either a specific amount in mL (abbreviation of milliliter) of hair spray, or all-natural, without any hairspray at all. This manipulated variable will be set up and measured by mL, which means that I will take a hair spray bottle and spray out some of it into a small container that measures a set amount in mL, and let the hair sit in it for a specific amount of time. I will be discovering whether the hair gets hard because the hair spray damages the structure of hair and the chemicals seep into the hair, or it gets harder because it just adds another layer to the hair. I will make observations under a microscope. The responding variable will be the strength of the hair. The control variable will the the type of hair (but with three different people), the
Have you ever thought about the preparation and thought that goes into a research experiment? There are many things to consider when planning a study, such as the questions you are trying to answer, the variety of participants that will be studied, and the different variations in the experiment. An important part of the experiment that can have a significant impact on the results are the variables chosen. In doing this, the researcher can easily tell what factors have an effect on the topic under study.
To base a conclusion on what the unknown variables are, we need to determine how to start and complete this experiment.
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
The input variables are the ones that I can change in order to affect the experiment and the outcome variables are the ones I will measure to see how the input variable has affected it. Input Variables --------------- Amount of calcium carbonate Amount of hydrochloric acid Surface area of calcium carbonate Concentration of hydrochloric acid Temperature of hydrochloric acid Introduction of a catalyst Outcome variables ----------------- Amount of calcium chloride released Amount of water released Amount of carbon dioxide released Change in weight
In order to have a successful, reliable experiment you need sufficient data and evidence, reliable research, variables to test and a follow – up experiment. There are several types of variables you need to do an experiment. An independent variable is the manipulated experimental factor that is changed to see what the effects are. A dependent variable is the outcome. This factor can change in an experiment in reaction to the changes in the independent variable. An experimental group is the group of participants that are exposed to the change that the independent variable represents. The control group is participants who are treated in the same way as the experimental group except for the manipulated factor which is the independent variable (King 24). Proper data, evidence and research is also needed so the experiment turns out correctly and you know what you are testing. A follow – up experiment is not required, however it helps the validity of the conclusion of the experiment. Validity is “the soundness of the conclusions that a researcher draws from an experiment” (King 25). Conducting a follow – up experiment will help researchers and people alike see if the experiment worked properly, continues to help people and see how participants are doing after the experiment is over.
Scientists make progress by using the scientific method, a process of checking conclusions against nature. After observing something, a scientist tries to explain what has been seen. The explanation is called a hypothesis. There is always at least one alternative hypothesis. A part of nature is tested in a "controlled experiment" to see if the explanation matches reality. A controlled experiment is one in which all treatments are identical except that some are exposed to the hypothetical cause and some are not.
It is composed of several steps, it starts with observations. Observations are where a person collects known data concerning what you are going to test on. Next they formulate a hypothesis based on their observations. After they have a hypothesis they perform several experiments to prove or disprove it.
When approaching the topic of hair chemistry, one may think about the question, where does hair come from? Saclike holes called follicles are located all over the human body. At the bottom of these follicles are a cluster of papilla responsible for the growth of hair. As the papilla, otherwise known as hair bulbs reproduce to make new hair cells, the old ones are pushed up towards the surface of the skin causing the hair to grow longer. This may seem like a simple concept to grasp. However, the process of hair growth is a little more in depth.
Purpose: Writing is important in all areas of scientific work, because results have no value unless shared with other workers. A lab report explains what was done in the experiment, what was learned, and what the results meant. An important aspect of science is to present information in a clear and precise manner so that other people can interpret and trust your data. Consequently, experimental data should be organized and presented in scientifically accepted ways, the most common forms being tables and graphs. Learning the appropriate way to present experimental data in the form of tables and graphs is essential to any scientist.
The first method to be discussed and analysed are experimental methods. There is a variety of experimental methods including; laboratory, field and natural experiments. These methods are the most scientific method due to them being highly objective and systematic. In addition, this method is regarded as the most powerful research method used in psychology because of the potential to investigate the causes of events and therefore, identifying the cause and effect relationship. When carrying out an experiment the researcher intervenes directly in the situation being investigated. The researcher manipulates an independent variable (IV) in order to investigate whether there is a change in the dependent variable (DV). Any other variables that could have an
The report is written to describe as well as analyze a lab experiment, which explores a scientific concept. When writing a lab report, it is important to ensure that the discussion of the procedures, objectives and results is conducted in a way that is specific enough to allow those interested to replicate the experiment. An important reminder here is that lab reports make it difficult for students to rely on a single explanation for the findings. As such.
scientific method for things such as DNA samples from hair and body fluids, fingerprint analyses and
The design for this study will be a simple between subject experiment consisting of one experimental group and one control group. The independent variable will be warm colors. The dependent variable will be mood. The main goal is to determine if the independent variable will influence or cause difference in the specified dependent variable. The experiment group will spend 60 minutes in a warm paint color room and their mood will be measured. The control group will spend 60 minutes in a neutral paint color room and their mood will be measured.
In order for an experiment to be considered a true experimental design, the design must fit specific criteria. The researcher must have a hypothesis for a cause and effect relationship between variables, the treatment group, the control group, random selection for the treatment group, and random assignment for the control group. In a simple experiment, the researcher forms two groups that are similar or equivalent, through probability, to each other in every way possible appropriate to the concept of experiment. The treatment group receives the procedure for the experiment and the control group does not. Therefore, the only difference between the groups will be that one group receives the treatment for the experiment and one group does note. After the experiment is conducted the researcher analysis the results in both groups.
The steps that are included in most pre-college textbooks are defining the problem, gathering background information, forming a hypothesis, making observations, testing the hypothesis, drawing conclusions, and communicating the results, but this method is not used. One reason for this myth is the way results are published in research journals because it makes people believe that scientists follow a certain research plan. Philosophers have shown that no research procedure is applied by all scientists. Usually scientists use imagination, knowledge, perseverance, and other methods used by problem solvers. This myth teaches that science is not different from other challenges that humans face. This myth has a chance to be corrected because many newer textbooks are taking the method out of the discussions of