Kaitlyn Swearingen Effects of the Pigmentation of an Onion Cell within 40% Ethanol and Deionized Water Purpose: To measure the amount of pigment in a solution of 40% ethanol and deionized water both containing pieces of an onion with a spectrometer. Hypothesis: 40% ethanol breaks down the cell creating less surface area and spreading out the pigment while the deionized water absorbs the pigment in a greater surface area. Procedure: Add 10ml of deionized water and 40% ethanol to a 6-dram vial Add 6g of
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Exercise: Determine which of the following observations are testable. For those that are testable: Write a hypothesis and null hypothesis What would be your experimental approach? What are the dependent and independent variables? What is your control? How will you collect your data? How will you present your data (charts‚ graphs‚ types)? How will you analyze your data? 1. When a plant is placed on a window sill‚ it grows faster than when it is placed on a coffee table in the middle of
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define key terms‚ (iii) identify the key questions that must be answered to further advance our knowledge‚ and (iv) state the specific hypotheses that are being tested in this report and give the scientific basis of each hypothesis (and how they relate to the key questions); each hypothesis should be stated individually (v) include images from credible sources; (vi) cite all your sources. 3. Materials and Methods Each experiment should have its own subheading. Under the sub-heading‚ first include a
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TABLE OF CONTENTS Abstract Hypothesis Procedure Observation Analysis concusion Abstract An experiment was conducted to learn and demonstrate the steps involved in the scientific method. The steps of the scientific method were used to identify six substances that were labeled “unknown.” The substances were put through a series of tests an observations to determine their identities. Hypotheses The identities of the unknown substances are as follows: Substance #1 – Plant
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1 of 20 Which of the following is a property of life that is best illustrated by shivering and sweating? Order Reproduction Regulation Growth and development Question 2 of 20 Which of the following is the correct order of complexity‚ going from least to most complex? Atom‚ molecule‚ cell‚ tissue‚ organelle‚ organ Atom‚ molecule‚ organelle‚ cell‚ tissue‚ organ Organ‚ tissue‚ cell‚ organelle‚ molecule‚ atom Molecule‚ atom‚ organ‚ tissue‚ cell‚ organelle
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1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = b. Coal hypothesis = 2. Based on the results of your experiment‚ would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this. a. Pyrite hypothesis accept/reject = b. Coal hypothesis accept/reject = 3. Based on your data‚ what effect do you predict coal mining has on the environment?
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From the results that have been gathered‚ it tells a variety of different things. Each temperature attempt was done three times to be accurate. First of all‚ the hypothesis (the higher the temperature the faster the reaction will occur) has been proven correct and it proves the theory right. From the results‚ we can see this‚ as the iced water (10 degrees) had the slowest rate of reaction at 1.10 minutes. Then the room temperature water (19 degrees) was tested and had a slightly better rate of reaction
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eSciencelab.com biology lab #1 dissolved oxygen Determine which of the following observations are testable. For those that are testable: • Write a hypothesis and null hypothesis • What would be your experimental approach? • What are the dependant and independent variables? • What is your control? • How will you collect data? • How will you present your data (charts‚ graphs‚ types)? • How will you analyze your data? 1. When a plant is placed on a window sill‚ it grows faster than when it
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YEAST LAB REPORT PART I: ALCOHOLIC FERMENTATION Research Question: What will be the effect of increasing the number of yeast cells on the rate of fermentation? State your answer as a general hypothesis: Rate of fermentation: Amount of CO2 gas produced over a unit of time METHODS Table 1: Contents of the Yeast Fermentation Tubes | |Volume (milliliters) That You Need to Add | |Fermentation
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logical and rational order of steps by which scientists comes to conclusions about the world around them that helps to organize thoughts and procedures.”1 The process of the Scientific Method is used by making an observation‚ forming a hypothesis‚ testing the hypothesis‚ analyzing data and then coming up with a conclusion. Scientists use the scientific method to search for cause and effect relationships in nature. 2 When a scientist is trying to solve a problem with the Scientific Method they first
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