Bio Unit 1 Intro to Biology & Experimental Design

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Biology

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The Science or study of living things. (Bio = living)

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Scientific Model

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A simplified representation of a system that helps us understand, explain, and predict things about the world around us.

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Science

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Using evidence to build testable explanations and predictions.

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Theory

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An explanation of a natural phenomena supported by many observations and experiments over time. Ex: Cell Theory.

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Scientific Law

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Describes a relationship under certain conditions in nature (typically physical). Ex: Law of Gravity.

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Qualitative Observation

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Descriptive observations gathered using your senses (sight, smell, touch, taste, and hearing).

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Quantitative Observation

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Numerical (numbers) such as measurements and counted values. Often made using a measuring tool or device.

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Hypothesis

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A testable statement that can be shown to be false or potentially false by experimentation and observation.

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Independent Variable

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Factor being purposely changed or manipulated (usually graphed on X Axis).

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Control

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One of the independent variables - a base value used as a comparison.