Chapter One Flash Cards
Matter
Anything that occupies space and has mass
Three States of Matter
Solid, liquid, gas
A solid has a ___ volume and ____ shape
definite volume and shape
A liquid has a ____ volume and a(n) ____ shape
definite volume, indefinite shape
A gas assume the ____ and _____ of their containers
shape and volume
Liquids assume the shape of their ____
container
Pure Substance
Constant composition (ie copper and nitrogen gas)
Mixture
Have 2+ types of matter that can be separated (ie sea water + air)
Element
Pure substance that cannot be broken down any further by chemical changes
Compound
Pure substance that can be broken down by further chemical changes
Homogenous Mixture
A mixture with uniform composition (ie air, gatorade)
Heterogenous Mixture
A mixture without uniform composition (ie trail mix, pasta in boiling water)
Physical Property
Characteristic of matter not associated with changes in chemical composition (ie. conductivity, boiling point)
Chemical Property
When matter can change from one form to another (ie. flammability, reactivity)
Physical Change
Change in the state of the properties of matter (boiling water, salt dissolving, cutting paper)
Chemical Change
Change that makes a new kind of matter (ie iron rusting, fruit molding)
Unit
Standard for comparison
The two most common unit systems are
Imperial and metric systems
The unit system used by scientists that’s based on the metric system
International system of units
SI base units
- Length
- Mass
- Time
- Temperature
- Amount of substance
Length
Meter (M)
Mass
kilogram (kg)
Time
Second (s)