zbio - Unit 1 - Introduction to Life Science-Scientific Tools

16 terms by hodyjacky 

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Life Science

the study of living things. Also known as Biology

Observation

using one or more of your senses to gather information

Quantitative observation

observations that deal with numbers

Qualitative observation

observations that deal with descriptions that cannot be expressed with numbers

Inference

an explanation or interpretation of things that you observe

Prediction

making a forecast of what will happen in the future based on past experience or evidence

Model

a representation of a complex object or process that helps people understand things that cannot be observed directly

Scientific Inquiry

the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather

Hypothesis

a possible explanation for a set of observations or possible explanation to a scientific question

Variable

factors that can change in an experiment

Manipulated variable

the one variable that is purposely changed in an experiment to test a hypothesis

Responding variable

the factor that may change in response to the manipulated variable

Density

the amount of matter in an object in a particular space (mass of an object divided by its volume)

Metric System (SI)

the system of measurement used in science that is based on units of 10

Experimental group

The group in an experiment that is subjected to the experimental variable

Control group

The group in an experiment that is not subjected to the experimental variable and is used as a reference group

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