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CA-Earth Science-Matter
Classification and Properties of Matter
37
Science
6th Grade
09/22/2009

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Cards

Term
atom
Definition

the basic unit of matter

 

The smallest part of an element that still has all the characteristics of that element

Term
isotopes
Definition
atoms of the same element that differ in their number of neutrons, therefore their masses are different
Term

oxygen-15

 

oxygen-16

Definition
How would the names of two isotopes of oxygen be written? One has a mass of 15 and the other has a mass of 16.
Term
density
Definition

the amount of material in a given amount of space

 

d=m/v

Term
the ability to burn
Definition

Which of these is not a physical property of matter?

 

boiling point, color, density, temperature, the ability to burn, shape, texture

Term
matter
Definition
anything that takes up space and has mass
Term
proton
Definition
positively charged particle found within the nucleus of an atom
Term
electron
Definition
negatively charged particle found spinning in the area around the nucleus called the electron cloud
Term
neutron
Definition
atomic particle with no charge found within the nucleus of the atom
Term
water
Definition
only substance found on Earth naturally in all three phases
Term
covalent
Definition
compounds that are formed when atoms share electrons
Term
ionic
Definition
compounds formed when atoms transfer electrons
Term
elements
Definition
matter made up of one type of atom
Term
compounds
Definition

substances made up of two or more types of atoms that are chemically bonded together

 

has different characterstics than the elements that make it up

 

a chemical change is required to separate the individual parts from one another

 

Term
true
Definition
Compounds have different characteristics from the elements that make them up.
Term
Mixture
Definition

a combination of materials that are not chemically bonded together

 

the individual components keep their own characteristics

 

the components can be easily separated by physical means based on differences in characteristics

Term
ion
Definition
atoms that become charged by gaining or losing electrons
Term
positive
Definition
the charge of an ion that was formed when an atom lost electrons
Term
negative
Definition
charge of an ion that is formed when an atom gains electrons
Term
physical
Definition
properties that you can observe or measure without changing the composition of the matter
Term
chemical
Definition
properties that can only be observed when matter interacts with other matter and forms something new
Term
solid
Definition

state of matter in which the particles are moving relatively slowly due to their low amount of energy

 

particles are packed closely together in fixed positions

shape and volume do not depend on their container

Term
liquid
Definition

phase of matter in which the particles have enough energy to slide past one another and change position

 

has a definite volume but shape changes with container

Term
plasma
Definition
state of matter that is comprised of ions and electrons that are produced when the atoms collide at great speeds and with great energy and break apart or fuse together
Term
Gas
Definition

phase of matter in which the particles have so much energy that they are able to overcome attractions for one another and fill the space of their container

 

shape and volume depends on their container

Term
molecule
Definition

the smallest part of a covalent compound

 

the building block of compounds

Term
nucleus
Definition
center of an atom
Term
protons and neutrons
Definition
particles found in the nucleus of an atom
Term
electron cloud
Definition
where electrons are located in an atom
Term
atomic number
Definition
indicates the number of protons in an atom
Term
mass number
Definition
indicates the number of protons and neutrons in an atom
Term
melting
Definition
phase change from solid to liquid
Term
freezing
Definition
phase change from liquid to solid
Term
condensation
Definition
phase change from gas to liquid
Term
vaporization
Definition
phase change from liquid to gas
Term
deposition
Definition
phase change from gas directly to solid
Term
sublimation
Definition
phase change from a solid directly to a gas
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