3rd Monthly Test
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
Solid
Has definite shape and volume
Liquid
Changes shape depending on container, definite volume
Gas
No definite shape and volume
Plasma
No definite shape and volume
Liquid to Solid
Freezing
Solid to Liquid
Melting
Liquid to Gas
Vaporization
Gas to Liquid
Condensation
Solid to Gas
Sublimation
Gas to Solid
Deposition
Releasing Thermal Energy
Deposition, Condensation, Freezing
Absorbing Thermal Energy
Sublimation, Melting, Vaporization
the amount of matter in an object.
Mass
anything that occupies space and has mass.
Matter
the space occupied by an object.
Volume
measurement of how tightly a material is packed together.
Density
is a representation of what an atom could look like based on observations and scientific evidence.
Atomic Model
is considered the smallest particle of matter.
Atom
“Atomos” greek word meaning “uncut”
Democritus
substances that are made up of only one kind of particle and has a fixed or constant structure.
Pure substance
2 types of Pure substance
Element and Compound
substance that consists of only one type or kind of atom.
Element
substance when two or more elements are combined chemically in a fixed ratio.
Compound
made up of two or more substances that are not chemically combined.
Mixtures