Chapter 1 Vocab

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21 terms

Physical Science

The study of matter and energy.

Scientific Method

A series of steps used to answer questions and solve problems.

Technology

the application of knowledge tools, and materials to solve problems and accomplish tasks.

Observation

use of sense to gather information

Hypothesis

possible explanation or answer to a question

Data

pieces of information acquired during an experiment

Theory

unifying explanation for a broad range of hypothesis/ observation that has been supporting by testing.

Law

summary of how things work

Model

Representation of an object or system.

Meter

Metric (SI) Unit for length

Volume

the amount of space that something occupies

Mass

the amount of matter that makes up an object

Temperature

mesure of how hot something is

Area

how much surface an object has

Density

mass per unit volume

Crystalline

very orderly arrangement

Amorphous

not orderly arrangement

Surface Tension

the force between particles on the surface of a liquid

Viscosity

liquid's resistance to flow

Hydraulics

brake system on a car, pressure on one end cause pressure on the other end.

Pressure

the amount of force exerted on a given area.

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