Untitled Deck Flashcards
(42 cards)
Scientific Model Change
Adjustments made when new contradictory information arises.
Volume
Amount of space occupied by an object.
Mass
Quantity of matter in an object.
Density
Mass per unit volume, calculated as mass/volume.
Density Calculation
Density = mass (kg) / volume (cm³).
Base Metric Unit for Volume
Milliliters (ml) or cubic centimeters (cm³).
Base Metric Unit for Temperature
Measured in Kelvin (K).
Base Metric Unit for Mass
Kilograms (kg) are standard unit.
Base Metric Unit for Time
Seconds (sec) are standard unit.
Particle Movement in Solids
Particles vibrate in fixed positions, strongly attracted.
Particle Movement in Liquids
Particles slide past each other, still in contact.
Particle Movement in Gases
Particles move freely in all directions, high energy.
Solid Characteristics
Definite shape and definite volume.
Liquid Characteristics
Undefined shape but definite volume.
Gas Characteristics
Undefined shape and undefined volume.
Freezing
Liquid to solid transition with decreasing temperature.
Melting
Solid to liquid transition with increasing temperature.
Vaporization
Liquid to gas transition with increasing temperature.
Sublimation
Solid to gas transition under specific conditions.
Condensation
Gas to liquid transition with decreasing temperature.
Deposition
Gas to solid transition under specific conditions.
Compound Separation
Compounds require chemical methods for separation.
Mixture Definition
Combination of at least two substances physically mixed.
Pure Substance Definition
Contains only one type of substance.