Physical Science- unit 2 Flashcards
What is matter
anything that has volume and mass( takes up space and weight)
what are elements
pure substances
what is a mixture
putting 2 or more things together
homogeneous mixture? what is it, name one, and why is it homogeneous?
Same throughout (ex: blood, white milk, coffee, etc) homogenous because you cannot see or separate the parts of it
heterogeneous mixture? what is it, name one, and why is it heterogeneous?
different throughout (ex: salsa, mud, lake) you can see or separate the parts
what is proton? what charge? where is it
positive charge- located in the nucleus
what is neutron? what charge? where is it
no charge- located in nucleus
what is an electron? what charge? where is it
negative charge- located on the electron shell
4 states of matter on earth
solid, liquid, gas, plasma
3 common states of matter on earth describe energy
solid- least, liquid- middle, gas- most
describe what is happening t hte molecules as energy is increased from solid to liquid to gas. then descirbe the names of the phasing events and when they occur
solid- little vibration, liquid, more vibration, gas- lots vibration.
solid to liquid- melting
liquid to gas- evaporating
gas to liquid- condensation
liquid to solid- freezing
Celcius freezing and boiling points
0, 100
Fahrenheit freezing and boiling points
32, 212
valence shell and valence electrons
outmost shell, outer most electrons
ionic bond
transfers electrons
