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21 terms

Chapter 1 Vocab

STUDY
PLAY
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.