Upgrade to remove ads
Only $2.99/month

9th grade science

Terms in this set (35)

Vapor
A gas that is the result of evaporation
Submicroscopic
The level of magnification beyond microscopic, the realm of atoms and molecules
Solid
Matter that had a definite volume and a definite shape
Physical properties
Any physical attribute of a substance, such as color, density, or hardness
physical change
A change in which a substance changes one or more of its physical properties without transforming it into a new substance
Phases
These are solid, liquid and gas
periodic trend
Across any period on the periodic table, the properties of the elements gradually change in a predictable and consistent way
Period
A horizontal row in the periodic table is called this
Molecules
A submicroscopic particle consisting of a group of atoms
Microscopic
The level of magnification requiring magnification such as a microscope
Alkali metals
These are group 1 elements, which are metals
Melting
A transformation from a solid to a liquid
Malleable
Means this material can be hammered into different shapes
Macroscopic
The level of magnification where matter can be seen unassisted, or with your eye balls and no magnification
Liquid
Matter that has a definite volume but no definite shape, assuming the shape of its container
heat of vaporization
The amount of energy required to change any substance from a liquid to gas, which is the same amount of energy released when the substance transforms from a gas to a liquid
heat of fusion
The amount of energy needed to change any substance from a solid to a liquid, which is the same amount of energy released when the substance transforms from a liquid to a solid
group/family
A vertical row of the periodic table is called this
Gas
Matter that has neither a definite volume no a definite shape, always filling and space available to it
Freezing
A transformation from a liquid to a solid.
Evaporation
A transformation from a liquid to a gas
Element formula
A notation that uses the atomic symbol and (sometimes) a numerical subscript to denote how atoms of the elements are bonded together
Atoms
Really small particles, the building blocks for what we know. Also the smallest form of an element
applied research
A branch of scientific research that focuses on developing applications built upon the principles discovered through basic research
basic research
A branch of scientific research that focuses on a greater understanding of how the natural world operates
Boiling
Evaporating in which bubbles form beneath the liquids surfaces
Chemical bond
The force of attraction between two atoms that holds them together
chemical change
A change in which the atoms of one or more substances are rearranged into one or more new substances
chemical property
A property that characterizes the ability of a substance to undergo a change that transforms it into a different substance
chemical formula
A notation used to indicate the composition of a compound, consisting of the atomic symbols for the different elements of the compound and numerical subscripts indicating the ratio in which the atoms are combined
Chemical reaction
Synonyms with chemical change
Compound
A material in which atoms of different elements are bonded to one another
Condensation
A transformation from a gas to a liquid
Ductile
Means this material can be drawn into wire
Element
The basic units of matter, these join together to form everything we know and love, these are on the periodic table of ___________
YOU MIGHT ALSO LIKE...