Matter Flashcards
Matter
Anything with mass and volumes
(Solid, liquid, gas, plasma)
Volume
Amount of space taken up
Mass
The amount of matter contained in an object; measured in grams or ounces; never changes
Elements
Pure substance that cannot be broken down into another substance; contains only 1 type of atom; has own characteristics/properties
Compounds
Pure substance made of 2 or more elements chemically combined; always a specific ratio; has own characteristics; broken down by chemical change
Mixture
2 or more substances not chemically combined
Homogenous mixture
Contents are spread out evenly
Heterogenous mixture
Contents are not spread out evenly
Use a magnet
Can separate mixtures
Centrifuge (density)
Way to separate a mixture
Distillation (boiling points)
Way to separate a mixture
Filtering
Way to separate a mixture
Ductility
Ability to be pulled into a wire
Malleability
Ability to be rolled into thin sheets
Thermal conductivity
How a material absorbs heat
Physical properties
Characteristics that can be observed; describes the objects
Examples of physical properties
Color
State/phase
Density
Size/shape
Solubility
Solvent
Does the dissolving
Solute
Is being dissolved
Chemical property
Characteristic that describes how it can react or change
Chemical property examples
Reactivity - acid base
Oxidation - O2
Flammability - burns easily
Combustibility - can catch fire or explode
Physical Change
Only changes the appearance of the substance
Examples of physical change
Dissolve
Change state
Change shape or size
Mixing together
Chemical change
Substance reacts and turns into a new substance with different properties *old substance is no longer there
Examples of chemical change
Burning
Chemical reaction
Digesting food
Rusting
Souring milk
Cooking
Signs of a chemical change
Gas bubbles produced
Heat given off
Odor changes
Light or sound produced
Color changes
Forms precipitate
Weight
The force of gravity on an object’s mass; changes with gravitational pull; measured in Newtons and pounds
Density
Determines an objects ability to sink or float (mass/volume = density)
Chemical Formula
Shows the composition of the elements making up a compound
