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BIOLOGY Faster Plop, Plop, Fizz, Fizz: A Scientific Method Investigation Investigation Manual
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FASTER PLOP, PLOP, FIZZ, FIZZ .................................................................... .................. .......................... 2 Carolina Distance Learning Made ADA compliant by NetCentric Technologies using the CommonLook ® software Table of Contents 2 Overview 2 Objectives 2 Time Requirements 3 Background 6 Materials 7 Safety 7 Preparation 7 Activity 1 9 Activity 2 10 Disposal and Cleanup Overview The scientific method is an approach to answering a question. Science is an evidence-based discipline that attempts to build a better understanding of the natural world and how it works. One of the primary tools of scientific research is the use of the scientific method to answer specific questions. In this exercise, the scien- tific method is used to investigate the rate at which effervescent tablets dissolve in water and to identify the factors that affect this rate. After an initial experiment, a question will be developed, and the scientific method will be applied to answer it. The objective is to begin to understand the scientific method and to learn how to collect and analyze data. Objectives Formulate a hypothesis that can be tested empirically, i.e., based on observation. Explain independent, dependent, and controlled variables and how to apply them in designing an experiment. Apply key principles of the scientific method in designing an experiment to answer a question. Analyze data generated by the experiment to determine whether it supports or refutes the hypothesis. Time Requirements Preparation 15 minutes Activity 1: Temperature vs. Time to Dissolve 40 minutes Activity 2: Testing the New Hypothesis 40 minutes Key Personal protective equipment (PPE) goggles gloves apron follow link to video photograph results and submit stopwatch required warning corrosion flammable toxic environment health hazard
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3 continued on next page Background In our day-to-day experience, we all make observations about how the world works. In the fall, the leaves on trees change color. In the springtime, pansies are one of the first flowers to bloom. Sometimes these observations stimulate our curiosity. Why are pansies one of the first flowers to bloom each year? What characteristics of pansies are responsible for their early blooming? Are there ways that pansies can be pushed to bloom even earlier? The goal of scientific research is to try to understand these phenomena at a deeper level by asking questions. Science is an evidence- based discipline that attempts to build a better understanding of the natural world and how it works. One of the primary tools of scientific research is the use of the scientific method to answer specific questions. The scientific method involves doing experiments and making observations to answer a question of interest. The question generally arises from an observation such as “Why do leaves change color?” or “Why are pansies one of the first flowers to bloom each year?” or “Why do apples turn brown after they are cut?”
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