Math Vocab
What is a Natural Number?
Numbers greater than 0
1 ,2 , 3 , 4, 5
A decimal number that has digits that do not go on forever
Terminating decimal
Pure substance containing only one kind
Atom
Atoms are _________ combined in someway, often time (but not always) they come together to form groups of atoms called molecules.
Chemically
Two or more _________ or ___________ Not chemically combined.
elements , compounds
What is an Irrational number?
A number that cannot be expressed a ratio of 2 integers or as a repeating or terminating number
A decimal number with digits the repeat for ever?
Repeating decimal
Over 100 existing elements are listed and classified?
Periodic Table
Compounds __________ be separated by physical means
Cannot
Mixtures can be uniform _______ are known as solutions
homogenous
What is a Whole number?
Numbers 0 and greater with no fractional parts
0, 1, 2, 3 4.......
1/3
Repeating decimal
What is an element always uniform through?
Homogeneous
Are the properties of compounds different than the prop ties of the elements it contains?
Usually / yes
Mixtures non uniform_________
Hetrogenous
What is a rational number?
Any number that can be expressed as a ration of 2 integers
Positive and Negative whole numbers
Integers
An element ______________ be separated into simpler materials.
Cannot
Name 2 compounds
Dry Ice, Sugar, Sulfuric Acid, Salt, Baking Soda
Name 2 kinds of matter
Air, Wood, Bronze, Milk, Gasoline, Pail of garbage, Ink, Popcorn, A dog, Pizza, Concrete
What is Integers?
Positive and negative whole numbers
...-2,-1, 0, 1, 2
Numbers 0 and greater with no fractional part?
Whole number
Name two elements
Diamond, Krypton, Bismuth, Uranium, Titanium, Iron Gold
What is steam as compound?
Gas, Hot
Pure element how many Atoms?
One