SCIENCE FINAL PAGE ONE

    Master this deck with 40 terms through effective study methods.

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    Created by @colettef31

    What defines a system?

    Interacting parts that form a whole.

    What is a subsystem?

    A system that is part of another system.

    What is input in a system?

    Energy, information, and matter entering the system.

    What is output in a system?

    Energy, information, and matter exiting the system.

    What does a system boundary define?

    The limits of the system to be studied.

    What is a model in science?

    A simplified representation used to study a system.

    What is the goal of science?

    To ask and answer questions about the natural world.

    What is an investigative question?

    Sets the purpose of the experiment.

    What is a hypothesis?

    A prediction based on prior knowledge.

    What is a controlled variable?

    A factor kept the same to ensure a valid experiment.

    What is the manipulated variable?

    The factor purposely changed by the experimenter.

    What is the responding variable?

    The factor being measured and recorded.

    What is the goal of engineering?

    To apply scientific understanding in developing solutions.

    What are the three parts of engineering design?

    Define, develop solutions, optimize.

    What are constraints in design problems?

    Scientific principles and potential impacts on people and the environment.

    How are design solutions evaluated?

    Based on how well they meet criteria and constraints.

    What is the unit of measure for mass?

    Gram.

    What is the unit of measure for volume?

    Liter.

    What is the unit of measure for length?

    Meter.

    What is the unit of measure for weight?

    Newton.

    What does the prefix milli mean?

    1/1000 (0.001).

    What does the prefix centi mean?

    1/100 (0.01).

    What does the prefix deci mean?

    1/10 (0.1).

    What does the prefix deka mean?

    10.

    What does the prefix hecto mean?

    100.

    What does the prefix kilo mean?

    1000.

    When was the Earth formed?

    4.5 billion years ago.

    What is the rock cycle?

    The process of changing rocks over time.

    What characterizes metamorphic rocks?

    Changed by heat and pressure.

    How are sedimentary rocks formed?

    From compacted and cemented particles.

    How is igneous rock formed?

    When molten rock cools.

    What is weathering?

    Breaking down of substances over time.

    What is erosion?

    Transportation of weathered particles.

    What drives weathering and erosion?

    Energy from the Sun and gravity.

    What drives melting and crystallization?

    Energy from the Earth’s interior.

    Where are most fossils found?

    In sedimentary rocks.

    What do rock strata and fossils provide?

    Relative dates in Earth’s history.

    What does the Law of Horizontality state?

    Layers of sediments are deposited horizontally.

    What does the Law of Superposition state?

    Newer rock strata sit on top of older strata.

    What does the Law of Crosscutting state?

    An igneous rock feature is younger than the rock it cuts across.