EXERCISE: Scientific Investigation Laboratory Objectives After completing this lab topic‚ you should be able to: 1. Identify and characterize questions that can be answered through scientific investigation. 2. Define hypothesis and explain what characterizes a good scientific hypothesis. 3. Identify and describe the components of a scientific experiment. 4. Summarize and present results in tables and graphs. 5. Discuss results and critique experiments. 6. Design a scientific experiment. 7.
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of the experiment and presents your hypothesis. Relevant background information (appropriately referenced) is given in sufficient detail that a person unfamiliar with the topic can understand the nature of the experiment. A good introduction is clear and concise. Carbohydrates and proteins should be explained in terms of their structure and major functions in cells. Your intro should end with a brief overview of the amylase experiment‚ including your hypothesis and predictions about what expect will
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bag works similar to a membrane in certain situations. Introduction: I know prior to doing this experiment that iodine mixed with starch creates a dark color and that most objects‚ organic and inorganic‚ naturally experience isotonic reactions. Hypothesis: I think that the potato will absorb more starch than the sweet potato and they will both absorb relatively similar amounts of water. Procedure: Variables: Controlled- water and size of potatoes. Manipulated variables- potatoes growth based on
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systematically acquire knowledge and understanding about behavior and other phenomena of interest 5 Other terms to know Theory Hypothesis Broad explanations and predictions concerning phenomena of interest Stemming from a theory‚ a prediction stated to be tested Operational definition Translation of a hypothesis into specific‚ testable procedures that can be measured and observed 6 Scientific Method 1. Identify question of interest •Behavior and
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apple Cut the apple in nine slices Sprinkle the first bag with salt Sprinkle the second bag with sugar Keep the third bag the same Place three apple slices in each bag Wait for one week and record results Hypothesis If apple slices are placed in re-sealable bags‚ then the ones that have not been sprinkled with salt or sugar will rot fastest‚ because sugar and salt help preserve the apple slices better.
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Title: Penny Lab Experiment By -Objectives To determine how soap affects the surface tension of water. -Hypothesis In this experiment the hypothesis was that soap was going to affect the surface tension by weakening the bonds and allowing less water on the penny. -Materials * Penny * Beaker x2 (One containing soapy water the other containing pure tap) * Paper towels * Lab review sheet * Pencil * Pipette -Procedure First we picked who would drop the water onto
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direct relationship and similarity between standing height in centimeters and leg length in centimeters. Therefore‚ our hypothesis was‚ if leg length increases‚ then standing height will also increase. 1) The steps for the scientific method are: • An observation is made • A question is asked • An tentative answer is posed‚ in the form of a hypothesis • “if….then” method • The prediction can be tested by experiments or additional observation The name of
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Notes The ultimate goal of theory evaluation is to determine the potential of the theory to scientific knowledge. Hardy • Theory evaluation: o meaningful and logical adequacy o Operational and empirical adequacy o Testability o Generality o Contribution to understanding o Predictability o Pragmatic adequacy Logical adequacy (diagramming) - identifying all theoretical terms (concepts‚ constructs‚ operational definitions‚ referents). Theory is a set of interrelated concepts and statements
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things inside‚ just so they don’t go outside. This shows how a stimulus can affect an organism’s behavior and what they do. Hypothesis: For my hypothesis I wrote‚ "If the pill bugs are in the petri dish with the other chemicals then they will go to the filter paper where the sugar is more so then the other filter paper that has chemicals on it". I choose this hypothesis for many reasons. First off‚ I know that most organisms‚ bugs‚ insects‚ etc… like sweet and sugary tasting things. I know this
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question or problem statement. Problem Statement: How do different ambient temperatures affect the rate of body cooling? 2. Predict a solution to the problem or an answer to the question. This will be in the form of a hypothesis. This solution design or hypothesis should be based on previously obtained knowledge or research and should be supported by scientific evidence. Identify the independent and dependent variables. The independent variable is the variable that is varied or manipulated
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