What's the matter?
Anything that occupies space and has mass
What is matter?
What is Brownian motion?
A distinct group of two or more atoms covalently bonded together
What is molecule?
The four phases of matter are
What are solid, liquid, gas, and plasma?
_______ is anything about a substance that can be observed without altering the substances chemical composition
What is a physical property?
A ____ model will explain most observations and make accurate positions
What is workability?
The constant random motion of air particles
What is diffusion?
Mass of matter contained within a particular volume
What is density?
The states of matter are determined by the relationship between the ____
What is kinetic energy?
____ will change the appearance of a substance
What is physical change?
The amount of matter in an object
What is mass?
____ rejected the sixth century concept that all matter was made of indivisible atoms and that nothing existed between them
Who is Aristotle?
Material made of only one kind of element or compound; not a mixture
What is pure substance?
The most common state of matter in the universe is ____
What is plasma?
_____ describes how a substance changes in the presence of another substance or under certain conditions
What is chemical property?
The space enclosed or occupied by an object
What is volume?
This model states that all physical matter exists in the form of particles in constant motion
What is the particle model of matter?
When different substances are mixed so that they have a uniform appearance throughout
What is a homogenous mixture?
_____ is a measure of a fluids resistance to flowing
What is viscosity?
Changes that alter chemical compositions of a substance
What is chemical change?
What is weight?
The law that states the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds
What is the law of definite proportions?
A solution is another term for a?
What is a homogeneous mixture?
State of matter where density is at its lowest
What is gas?
When a solid transitions directly to a vapor without melting first
What is sublimation?