Unit 1.2 Scientific Tools and Environmental Sampling

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Descriptive Investigation

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A type of investigation that involves observing, recording, and describing natural phenomena without manipulating any variables.

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Comparative Investigation

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An investigation that involves collecting data on different organisms, objects, or features and comparing them to identify patterns or relationships.

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Experimental Investigation

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A scientific investigation where variables are manipulated and controlled to test a hypothesis and determine cause-and-effect relationships.

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Independent Variable

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The variable that is changed or manipulated by the scientist in an experiment.

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Dependent Variable

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The variable that is measured or observed in response to changes in the independent variable.

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Control Group

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The group in an experiment that does not receive the treatment; used as a benchmark to measure the effects of the independent variable.

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Hypothesis

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A testable prediction or explanation for a scientific question or observation.

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Safety Equipment

Back

Tools used to protect individuals during lab or field investigations, such as goggles, gloves, aprons, and eyewash stations.

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Personal Protective Equipment (PPE)

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Clothing or gear (like gloves and goggles) worn to minimize exposure to hazards that can cause injury.

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Safety Procedures

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Guidelines and rules followed to prevent accidents and ensure a safe working environment in labs and outdoor investigations.