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What is Science State the Goals of Science
Describe the steps used in scientific methodology Pg. 4-9
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Mystery Tubes Work with your partner to determine what is happening inside the box DO NOT OPEN THE TUBE
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What is science? Science is a process of gathering knowledge about the world around us Goal of science: To understand and investigate the natural world, and to explain events and phenomena in the natural world. The word science comes from the Latin word scientia, which means “knowledge”. Science represents knowledge that has been gathered overtime. Science as a way of knowing: The word science refers to the body of knowledge that scientific studies have gathered over the years. Goals: science can uses the explanations to understand patterns in nature and to make useful predictions.
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Brief video http://www.youtube.com/watch?v=w8Uo_OAbCSo
When you think Scientist, what do you think of? Myth of the Scientist Brief video
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Science is Different from other subjects because…
It is an organized way of using evidence to learn about the natural world. Concepts or ideas must be testable It is not a set of truths that never change It is a set of stable ideas that can change with new evidence Science is an ongoing process
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Why is it so important to follow this method?
A general style of investigation. Scientific ideas MUST be testable and repeatable. The scientific method is the common process for establishing these ideas.
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The Steps of the Scientific Method
Step 1: Make an Observation An observation is the process of gathering information about events or processes in a careful, orderly way. An Inference is a logical interpretation based on prior knowledge or experience/observation. The information collected by observations is called data.
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Boy in the Pond Worksheet
Place an ‘I’ after statements that are inferences, and an ‘O’ after the statements that are observations. Observations: There is a kid is in the water There is a goat is standing next to the water There is a broken tree branch There is a sailboat is floating in the water Inferences: The branch broke when the kid was sitting on it, and s/he fell into the water. The goat butted the kid into the water when s/he was picking up her/his sailboat.
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The Steps of the Scientific Method
Step 2: Ask a question.
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The Steps of the Scientific Method
Step 3: make a hypothesis. A hypothesis is a possible explanation for a set of observations. Typically, a hypothesis is phrased as an if… than statement.
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The Steps of the Scientific Method
Step 4: Develop an Experiment to test hypothesis Some experiments involve continuing observations and trying to find relationships. Other experiments are controlled experiments. Do Not write this on the notes**
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The Steps of the Scientific Method
A controlled experiment is when one variable is changed all others are kept the same. A variable is a factor that is expected to change.
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variables in a controlled experiment
The control variable is all factors kept constant in the experiment The variable that the scientist changes is the independent variable. (what I change) The variable that changes as a result of the independent variable is called the dependent variable (usually the variable that the scientist is measuring – it depends on the independent variable)
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DRY MIX
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The steps of the Scientific Method
Step 5. Record and analyze data Types of Data Quantitative: Expressed as numbers, obtained by counting and measuring Exact temperature, Weight, Height, Number of stems Qualitative: Descriptions and involve characteristics that can’t usually be counted Shiny/Dull, Old/New, Blue/Purple/Green
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The Steps of the Scientific Method
Step 6: Draw conclusions and Communicate your Results Was the original hypothesis statement supported by the experiment or not? You are never proving that a hypothesis is true, only supporting it.
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The Steps of the Scientific Method
Step 6: Draw conclusions and Communicate your Results This step should include Charts and graphs displaying results A sentence/paragraph that states if you accept or reject your hypothesis
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The Steps of the Scientific Method
The development of a scientific theory. Scientific Theory- Well tested hypothesis that has been repeatedly supported. Ex. The cell theory, the big bang theory, the theory of evolution.
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The Steps of the Scientific Method
Step 1: Make an Observation. Step 2: Ask a question. Step 3: Make a hypothesis. Step 4: Develop an experiment Step 5: record and analyze data. Step 6: Draw a conclusion. Variables and the Mythbusters
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Design your own experiment!
Let’s say you wanted to know if using flashcards would improve student grades on a biology test. Using the scientific method explain how you would develop an experiment to test this problem.
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Scientific Method Song
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Scientific Method- Identify the I&D variables
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