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Science 8 Ch. 1

Chapter 1 Vocabulary

TermDefinition
constant Variable that is not changed in an experiment.
controlled experiment Involves changing one factor and observing its effect on one thing while keeping all other things constant.
critical thinking involves using knowledge and thinking skills to evaluate evidence and explanations
data information gathered during an investigation; recorded in the form of descriptions, tables, graphs, or drawings.
dependent variable variable that changes as a result of a change in the independent variable
Earth Science study of Earth systems and systems in space, including weather and climate systems, and the study of nonliving things such as rocks, oceans, and planets
hypothesis reasonable guess that can be tested and is based on what is known and what is observed
independent variable variable that is changed in an experiment
infer to draw a conclusion based on observation
life science study of living systems and how they interact
model any representation of an object or an event that is used as a tool for understanding the natural world; can communicate observations and ideas, test predictions, and save time, money, and lives
physical science study of matter, which is anything that takes up space and has mass, and the study of energy, which is the ability to cause change
science way of learning more about the natural world that provides possible explanations to questions and involves using a collection of skills
scientific law a rule that describes a pattern in nature but does not try to explain why something happens
scientific theory A possible explanation for repeatedly observed patterns in anture supported by observations and results from many investigations
system collection of structures, cycles, and processes that relate to an dinteract wtih each other
technology use of science to help people in some way
variable factor that can be changed in an experiment
Created by: geoffereyj
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