Matter
Matter is anything that has ___ and ___
mass; volume
A property that you can observe WITHOUT changing the identity of the substance
Physical
A property that describes how it REACTS with another substance, CHANGING it to a new substance
Chemical
This change of a substance does not involve a change in identity
Physical
changing states is what kind of change
Physical
The amount of matter in a given space
density
Property that describes how easily it reacts with another substance
Reactivity
Property that describes how easily it catches on fire
Flammability
A change in which one or more substances react and are transformed into different substances
Chemical
What is required for matter to change states?
change in thermal energy (temperature)
As the temperature of a gas increases, what happens to the volume of the gas?
increases
Property that determines how easily it transfers heat and/or electrical current
Conductivity
Property that determines how easily it can dissolve
Solubility
Give 3 examples of physical changes
What do all of these have in common?
change in size, shape, form, state
does not form a new substance
speed up; move farther apart
As the volume of a gas decreases, what happens to the pressure of the gas?
increases
Property that describes how shiny it is- does it reflect light?
Luster
Property that determines how easily it can be made into a thin wire
Ductility
Give 3 examples of chemical changes
What do all of these have in common?
The AVERAGE kinetic energy of particles in a substance is its ___
Temperature
Objects with more mass are harder to get moving and harder to stop moving because of this property of matter
Inertia
Property that determines how easily it pours or flows
Viscosity
Property that determines how easily it flattens into a thin sheet
Malleability
Give 3 examples of the signs that a chemical change occurred and what are those signs called
heat absorbed/released, light, sound, bubbles, gas, odor, new substance formed, cannot be undone
indicators
What is the type of change when energy is added to a substance?
What is the type of change when energy is removed from a substance?
endothermic; exothermic