what is the independent variable for the tadpole diet experiment?sewell funeral home obituaries
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In your lab report, the _________ section is where you share the strategy for your experimen, When graphing your data, it is important that you, place the independent variable on the X-axis. All rights reserved. The dependent variable goes on the y-axis, or vertical axis. The dependent variable is the effect. **Carry out the strategy chosen in the hypothesis phase. A lot of managers think they can just throw data at a data scientist, he says, but every self-respecting data analyst will want to be involved in setting up the experiment and writing the protocol. And thats just good for everybody. Where that data comes from and how we analyze it depends on a lot of factors for . This cookie is set by GDPR Cookie Consent plugin. A researcher can control the number of hours a student sleeps. For example, in Experiment 2 above, some of the constant variables would be the type of plant being grown, the amount of fertilizer each plant is given, the amount of water each plant is given, when each plant is given fertilizer and water, the amount of sunlight the plants receive, the size of the container each plant is grown in, and more. which science classes high school students should be taking. Experiments are usually designed to find out what effect one variable has on another - in our example, the effect of salt addition on plant growth.. You manipulate the independent variable (the one you think might be the cause) and then measure the dependent variable (the one you think might be the effect) to find out what this . Direct link to Colin Andrews's post If each one had different, Posted 5 years ago. Where can you perform the experiment phase of the scientific method? There are two ways to identify the independent variable. Researchers are trying to determine if changes to . In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. In our oil well example, its the speed or efficiency with which you drill the well. 21, 1401 . Independent and dependent variables always go on the same places in a graph. Apple Tv Volume Control Not Working, You want to determine if the new diet will increase the average weight of the tadpoles. According to the lab, formulating a true hypothesis is far less important than: coming up with a good strategy to test the hypothesis. To illustrate, let's consider a simple (even silly) example. Skopped Multiple Choice Print 100 References 5 10 Then, they can collect data to see if the pattern is actually there. 1: Independent: dog food brands; Dependent: how much you dog eats, 2: Independent: how long you spend at the party; Dependent: your exam score, 3: Independent: Amount of time you spend waiting; Dependent: Total time you're at the dentist (the 30 minutes of appointment time is the constant), 4: Independent: Number of times your cousin is asked to eat vegetables; Dependent: number of tantrums. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. In your lab report, the _________ section is where you share the strategy for your experiment. You want to decide if the new diet will be associated with an increase in the average weight of the tadpoles. Practice Identifying the Independent Variable. The group that receives the treatment in an experiment (here, the watered pot) is called the, The factor that is different between the control and experimental groups (in this case, the amount of water) is known as the. Answer: The correct answer is - C. Tadpoles will be larger if fed a meat-based diet. How exactly do you isolate the factors that youre trying to study? Independent and dependent variables are commonly taught in high school science classes. H1: Caregiver's rules . what is the independent variable for the tadpole diet experiment? In an experiment, the variable of interest is called your dependent variable (note that you might have multiple dependent variables, but for the sake of simplicity here, Ill refer to one dependent variable). Our new student and parent forum, at ExpertHub.PrepScholar.com, allow you to interact with your peers and the PrepScholar staff. Identify independent variable Imagine that you wish to compare two different diets that will be fed to tadpoles raised. They are: In an experiment, the variable that you will measure is the ____________ variable. D) All of the choices are correct. Biology. In your experiment you keep all other factors , such as tadpole density per pan , temperature , pH , and the amount of food the same . If you purchase an item through one of our links, PrepScholar may receive a commission. In your experiment you keep all other factors, such as tadpole density, temperature, pH, and the amount of food, constant. The dependent variable (sometimes known as the responding variable) is what is being studied and measured in the experiment. Direct link to tyersome's post Nope, you can have multip. If you're studying how people feel about different television shows, the variables in that experiment are television shows and feelings. Length of the experiment b. If each one had different temperatures, then you have too many variables. The independent variable (sometimes known as the manipulated variable) is the variable whose change isn't affected by any other variable in the experiment. Where that data comes from and how we analyze it depends on a lot of factors for example, what were trying to do with the results, how accurate we need the findings to be, and how much of a budget we have. What is the null hypothesis the straw man youre trying to disprove? Tadpoles will be larger if fed a meat-based diet. For example, you can probably better control for the hardness of the rock by setting up two rigs 50 feet apart in the same location and digging dry wells. What is the independent variable for an experiment comparing different tadpole diets? You want to see if the meatbased diet will be associated with an increase in the average weight of the tadpoles. The difficulty is that the value of both of these variables can change. Parts of the experiment: Independent vs dependent variables. A lot of researches are done through surveys. Here control means the current way of doing things (e.g., the old bit) and treatment means the new way of doing things (e.g., the new bit). The only difference between your control and experimental groups is the type of food the tadpoles receive. So lets put it all together. A. He grew three different cultures of the bacterium E. coli under three heat lamps at different temperatures. isn't a hypothesis what your predicting will happen? Either the scientist has to change the independent variable herself or it changes on its own; nothing else in the experiment affects or changes it. 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores since that is what is being measured. Independent variables are the variables that the experimenter changes to test their dependent variable. He also advises organizations on their data and data quality programs. Tadpole Experiment 1. Question 2 A) diet The. . 2 What is the trick to remembering the independent variable? The hypothesis is: "The braking distance grows linearly with speed". A randomized controlled experiment is an experiment where you control to account for the factors you know about and then randomize to account for those you dont.. This is an example of kinesis Dependent and Independent Variables. what is the independent variable for the tadpole diet experiment? The effect on the dependent variable is measured and recorded. Identify independent variables: Imagine that you wish to compare the two different diets that will be fed to tadpoles raised in a lab. If you're studying how different types of fertilizer affect how tall plants grow, the variables are type of fertilizer and plant height. Common Misspellings: independant variable. Analytical cookies are used to understand how visitors interact with the website. which question can you ask yourself to determine the dependent variable of an experiment? Suppose your hypothesis is: "Braking distance grows linearly with speed." How do you graph an independent variable? So, the number of hours of sleep is the independent variable. What would be natural to do in the experiment phase if your hypothesis is: "The braking distance grows linearly with speed"? The Capture Of The Green River Killer, Which factor will you vary in order to test the hypothesis? The independent variable always goes on the x-axis, or the horizontal axis. An easy way to keep the two variables straight is to use the acronym DRY MIX, which stands for: Students are often asked to identify the independent and dependent variable in an experiment. Direct link to JayEyeGames's post A lot of researches are d, Posted 6 years ago. Explanation: In this experiment, it is observed that how the change in the type of diet if meat diet is internalized how the average weight of tadpoles increase comparatively than other types of diet. We help companies around the world make full use of their capabilities in the areas of Microsoft Dynamics, Office 365, Power BI, and cloud-based solutions based on the Azure platform. How are you going to select the wells? It's even possible for the dependent variable to remain unchanged in response to controlling the independent variable. The amount of time studied is the independent variable, because it's what she changed, so it's on the x-axis. Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. The College Entrance Examination BoardTM does not endorse, nor is it affiliated in any way with the owner or any content of this site. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. HBR Learnings online leadership training helps you hone your skills with courses like Digital Intelligence . This cookie is set by GDPR Cookie Consent plugin. Many randomized controlled experiments are done in a lab because its easier to control things in a laboratory setting, says Redman. Once you have a protocol, Redman suggests you do a small-scale experiment to test out whether the process youve laid out will work. Wellit turns out I forgot to water the seeds. 2. Changes to each of these independent variables cause the dependent variables to change in the experiments. Suppose you have the speed on the x- axis and braking distance on the y-axis. Its easy to mess up. Panel 2: One pot (experimental group) is watered. Independent Variable . It can be a lot easier to understand the differences between these two variables with examples, so let's look at some sample experiments below. Copyright 2023 WisdomAnswer | All rights reserved. Maybe the One diet is meat-based fish food, and the other is traditional diet of boiled lettuce.You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. We carry out innovative IT solutions paying attention to quality, efficiency and sustainability. The independent variable is the reason a change occurs in the dependent variable. What is the independent variable for the tadpole diet experiment? An independent variable is defines as the variable that is changed or controlled in a scientific experiment. View the full answer Transcribed image text: Help Save & Exit Submit 25 Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. In this experiment, I set up two identical pots. You want to know how this new, more expensive bit compares to the bit youre currently using, so you conduct an experiment comparing your existing drill bit with the new one. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded. In the example regarding sleep and student test scores, it's possible the data might show no change in test scores, no matter how much sleep students get (although this outcome seems unlikely). Thanks to that we guarantee high level of project management, consulting and services. I need at least 15 pages in length done 10 pages should consist of valid references. The dependent variable depends on the independent variable. Here's the definition on independent variable and a look at how it's used: An independent variable is defines as the variable that is changed or controlled in a scientific experiment. When a coral is bleaching, it expels symbiotic algae (zooxanthellae), which supply food for the coral, get rid of metabolic byproducts, protect it from pathogens and also create its bright colors. carry out the strategy and collect measurements. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. species reduced versus the reducing agent. The cookies is used to store the user consent for the cookies in the category "Necessary". What do you do in the experiment phase of the scientific method? Panel 3: In the experimental (watered) pot, 9/10 seed sprout. Diet. If you're seeing this message, it means we're having trouble loading external resources on our website. If an experiment were comparing five types of diets, then the independent variable (type of diet) would . 3 Which is true of the independent variable of an experiment? In order to be of scientific value, it is important that a hypothesis should be ___. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. Write an alternate hypothesis for this experiment: Based on the null hypothesis, I hypothesize that there will in fact be either an increase or decrease in the tadpoles weight base on their diets in a controlled experiment. They're independent of everything else. Goldfish will eat their eggs, or eat the fry after they hatch. Get the latest articles and test prep tips! Green frog tadpoles grow larger if kept in water above 18C. That will give you a more reliable result in terms of how the new and old drill bits perform under similar circumstances, but it will also cost you a lot of money to do, and you wont make any money in the process. What is the independent variable for the tadpole diet experiment? Multiple Choice diet lab conditions O species of tadpole O tadpole size They probably do not eat tadpoles in large quantities, although they might eat frog eggs and an occasional tadpole. An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that. Are you interested in understanding whether the new bit works in all of your wells or just specific types of ones? So you have to decide how much controlling is worth the cost. One pot of seeds gets watered every afternoon. Its value is independent of other variables in your study. Direct link to 47charbrow's post how come a prediction is , Posted 3 years ago. Similarly, in the drilling experiment, you might want to be sure you account for the expected hardness of the rock, so you may create 15pairs of wells based on how difficult you expect theyll be to drill. When graphing data for an experiment, the independent variable is plotted on the x-axis, while the dependent variable is recorded on the y-axis. a possible explanation for a problem or observation. For a manager to say, Im not sure I know, lets do an experiment, requires a certain amount of sophistication and understanding of how to run these things. But without experiments, you cant really be sure that your hunches are right. Suppose you study how speed affects the braking distance of a car. An independent variable is defines as the variable that is changed or controlled in a scientific experiment. The three most common cementing agents in sedimentary rocks are? In your experiment you keep all other factors, such as tadpole density, temperature, pH, and the amount of food, constant. However, after several weeks, I have no sprouts. Usually only one variable is measured and an experiment investigates how changing the independent variable affects the dependent . The independent variable is what you change, and the dependent variable is what happens because of the change. -Diet will have no effect on tadpole size. How does increasing a vehicle's mass affect its velocity? 0 like 0 dislike. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. An independent variable is a variable, often denoted by x, whose variation does not depend on that of another variable. Excel in a world that's being continually transformed by technology. It is the variable you control. Independent and Dependent Variables: Which Is Which? False. They havent done the thinking, says Redman. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. Identify independent variable Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. If you don't understand what these two variables are and how they differ, you'll struggle to analyze an experiment or plot equations. Is there always one independent variable and one dependent variable? Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. Using a standard title like that also makes it easy for others to see what your independent and dependent variables are. Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. start text, C, O, end text, start subscript, 2, end subscript, start superscript, 3, comma, 4, end superscript. What is the independent variable for the tadpole diet experi-ment? She has taught English and biology in several countries. For example, a hypothesis about viral infection can't be tested by dividing healthy people into two groups and infecting one group: infecting healthy people would not be safe or ethical. The independent variable is the factor that you purposely change or control in order to see what effect it has. experimental and control. In a graph, the independent variable is always graphed on the x-axis (horizontal, bottom one); whereas, the dependent variable is groups on the y-axis (vertical, side one). ***Methods (procedures) It would not be measurable. All kinds of businesses can conduct these experiments, and they necessarily dont need to be costly or time consuming they just need to be controlled and include an element of randomization., Lets start with the word experiment. You also have the option to opt-out of these cookies. The independent variable is the one the experimenter controls. Here is an example of an experiment: Researchers examined the effect of pesticides on tadpole limb development. If the hypothesis in a scientific experiment is not supported, the experiment is considered a complete failure and must be repeated until a satisfactory outcome is reached. Warmers colors, mostly near the equator, represent hotter temperatures, while cooler colors, mostly near the poles, represent cooler temperatures. The new diet is a meat-based commercial fish food. Let's say you get the following results: How do the sprouting seeds know to go up if they don't know which way the light is? Scenario 3: Your dentist appointment will take 30 minutes from start to finish, but that doesn't include waiting in the lounge before you're called in. The independent variable for the tadpole diet experiment are the amount of food given to the tadpole, temperature, pH, density because an independent variable is defined as the variable that is changed or controlled in a scientific experiment .It represents the cause or the reson for an outcome (dependent variable) that is increase in the average weight. An independent variable is the variable that is changed in a scientific experiment. How do you determine independent and dependent variables? What do you do in the analysis phase of the scientific method? He gives the example of two-year-olds, who are constantly running experiments: They think, If I scream, mom will come running. They are gathering data about the world, and while its not controlled, they are doing it purposively.. On the other hand, the scientist has no control on the students' test scores. ", Points on a straight line through (0,0) progressing upward and to the right. In your experiment you keep all other factors, such as tadpole density, temperature, . 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores, since that is what is being measured. Experiment - carry out the strategy collect measurements. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. Heres a more business-related example. The 5 Strategies You Must Be Using to Improve 160+ SAT Points, How to Get a Perfect 1600, by a Perfect Scorer, Free Complete Official SAT Practice Tests. The independent variable for the tadpole diet experiment are the amount of food given to the tadpole, temperature, pH, density because an independent variable is defined as the variable that is changed or controlled in a scientific experiment .It represents the cause or the reson for an outcome (dependent variable) that is increase in the average weight. Every experiment should have only one independent variable. Researchers are trying to determine if changes to the . The independent and dependent variables are the two key variables in a science experiment. Think of an independent variable as a cause that. The dependent variable is the variable that is being measured or tested in an experiment. -Tadpole size will be more variable if fed a meat-based diet. Or if you accidentally drill 15of the easiest-to-dig wells with the new bit, you dont really know whether its better. A Dependent variable is what happens as a result of the independent variable. Its value is independent of other variables in your study. One diet is a meatbased fish food, and the other is the traditional diet of boiled lettuce. True, In the _________ phase, you will carry out the strategy you developed for testing the hypothesis. This broader question could not be answered experimentally, as it wouldn't be ethical (or even possible) to artificially change the water temperature surrounding entire coral reefs. testable. Check out Tutorbase! THEN ANSWER THE PRE-LAB QUESTIONS USING INFORMATION IN THIS BOOK. The sowbugs seemed to be wandering around. Ask below and we'll reply! A change in the independent variable directly causes a change in the dependent variable. You can use dozens of filters and search criteria to find the perfect person for your needs. Direct link to Yvonne's post In the case of environmen, Posted 5 years ago. (2006-42) A scientist designed an experiment to test the effect of temperature on bacterial growth. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. Can banks make loans out of their required reserves? What do you do in the LabSmart experiment phase? The cookie is used to store the user consent for the cookies in the category "Performance". The scientist is changing the type of fertilizer each plant gets which in turn changes how much each plant grows, but every other part of the experiment stays the same. Either the scientist has to change the independent variable herself or it changes on its own; nothing else in the experiment affects or changes it. Usually in an experiment, youre trying to learn something about one, or at most a few, independent variables, but a lot of other factors can get in the way, says Redman. Similarly, in a clinical trial, there are a lot of other factors, such as patients age, general health, exercise regimens, and blood pressure, that can make it hard to see whether the results of the experiment can really be attributed to the drug as opposed to some other factor.
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