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Published byCalvin Wells Modified over 9 years ago
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Science comes from a Latin word Scientia means “Knowledge” Is a process that use observation and investigation to obtain knowledge.
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Physical science is the study of matter and energy The two main branches of physical science are physics and chemistry.
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What is physics? *science that deals with energy and matter and how they interact
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1. Life Science : deals with living things. 2.Earth Science: Study of earth and space 3.Physical science: deals with matter and energy
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Is a step by step procedures to solve a problem Six steps are seen in Scientific method
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1.State the problem 2.Gather the information 3.Form a hypothesis. 4.Test the hypothesis 5. Analyze data 6.Draw conclusion (7.Proclaim to the world)
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Date 08/19/10
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* Can be arise by observing repeated events. *Can be arise from an activity that is not working
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Do research to gather information Collect observations
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* is an educated guess Is a possible explanation for a problem using what you know, or what you observed
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Perform an experiment Or design an experiment. Need two factors: _Variables (Experimental Factor) _ Controlled factors
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Is a quantity that can have more than a single value. Can have different values.
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Dependent Variables:(responding variables) * The value change according to the change in the variables Ex. The amount of growth of a plant(can be change due to the amount of water, fertilizer, sun etc…) Independent Variables ( manipulated Variables) * is the variables you can change to see how it will effect the dependent variables Ex. water, fertilizer, sun etc…)
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The factor that does not change their variables
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Record the data or calculations
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Draw Conclusion Based on data,you draw a conclusion Ex. Out of 100, you got 98 same answer,then your hypothesis will be correct From that you form a Theory.
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Set of hypotheses that have been supported by testing over and over again. Can be change. Law: Is a statement. Never Change
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Is a visual idea, event, or object to help people better understanding Something you can touch.
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Use computers to build models Have complex equations that would be too long to calculate by hand
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*Compares numerical data with a picture. *Different types have different uses
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1.circle graphs, 2.bar graphs and 3.line graphs.
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Often called a pie chart divided into parts easy to compare to whole amount.
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wide columns used used for things like weight, height, and length. Compare quantities over a period of time.
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Line Graphs- compares sets of data, show change and patterns over time.
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A title Labeled & numbered axes A consistent scale on each axis Always have an X and Y axis. Independent variables are always on X-axis. Dependent variables are always on Y-axis
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Is a gauge of how exact a measurement is Accuracy Is the closeness of a measurement to the actual value of what is being measured.
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a.precision: degree of exactness b.accuracy: extent to true value 1 2 3 4 1. Neither Precise nor Accurate 2. Precise but not Accurate 3. Accurate but not Precise. 4. Accurate and Precise.
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