mixtures
atoms
elements
compounds
misc.
100
two or more materials that can be separated
What is a mixture?
100
The center of the atom containing the protons and neutrons.
What is the nucleus?
100
a valuable tool that lists all the elements and provides information about them
What is the periodic table of elements?
100
Two or more atorms with specific properties that have bonded together
What is a compound?
100
solid, liquid and gas
What are the three states of matter?
200
something you can observe--such as size, color, shape or texture
What is a physical property?
200
the positively charged part of the atom
What is a proton?
200
iron, aluminum, gold, silver, mercury
What are some examples of metal elements?
200
When the elements rearrange to form a new substance
What is a chemical reaction?
200
a change in the size, shape, or phase of matter, without the matter changing chemically. It is still the SAME matter.
What is a physical change?
300
a special mixture formed when a material dissolves in water
What is a solution?
300
the smallest piece of matter which cannot be broken down
What is an atom?
300
The letters on the periodic table that name the elements
What are symbols?
300
a mixture can be separated, but a compound cannot be separated
How is a mixture different than a compound?
300
flamability, an elements chance of rusting
What are chemical properties?
400
a process in which one material disperses, or seems to disappear into another
What is dissolving?
400
the outside of the atom, where the electrons are found
What is the electron field or electron cloud?
400
sulfer, oxygen, calcium, chlorine, nitrogen NOT--iron, cobalt, nickel, copper
What are nonmetal?
400
NaCl
What is salt?
400
the process of plants producing energy, oxygen and water by taking in carbon dioxide, water and the sun's energy.
What is photosynthesis?
500
when a liquid turns to a gas and disperses into the air
What is evaporation?
500
the symbols for the elements and small numbers that tell what atoms (elements) are combined
What is a formula?
500
the law that says matter is never created or destroyed. It is only changed from one form of matter to another or into energy.
What is the law of conservation of matter?
500
the ability of a substance to burn
What is flamibility?
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