Study 8th Grade Science Final] Flash Cards

 
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8th Grade Science Final]

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what are the waves in the elctromagnetic spectrum
?????
amplitude
the amount of energy in a wave
longitudinal wave
?
transverse wave
?
the formation of a chemical bond involves what atomic particles?
valance electrons
the atomic mass is equal to
the number or protons and neutrons
the number of protons in an atom is also known as what?
atomic number
global wind
long distances
local wind
short distances
how does wind occur
when the land is hotter or colder than water and vice versa
cumulonimbus
intense weather
weather fronts
cold- thunderstorms
warm- gental rain/snow
stationary - rain or snow
tropical- ??
hachure mark
shading line that groups likes that are all the same diriction: used to show steepness of slope
waht is a countour interval
space between contour lines
waht is a coutour line
line on map connecting points of land surface that are the same sea level
topographic
map featuring like bumps and ridges
how do you find the frequency of a wave?
waves / seconds::: in HERTZ
identify the parts of a wave...b able to diagram and label: wavelength: amplitude: trough: crest
;
revolution
planet on rotation
rotation
planet on axis
what are the three main types of galazies
eliptical spiral irregular
lunar eclipse
moon behind earth
solar elcipse
moon in front of earth
what causes tides?
the revolution of the moon around eath
neap tides
lower than low tides
spring tides
higher than high tides
what are the phases of the moon?
full
waxing
first quarter
waxing cresent
new
waning
third
waxing
full
waxing moon
more light
waning moon
less light
how will the universe end?
CLOSED:
oPEN:
ClOSED: another big bang

OPEN: The universe will continue expanding forever.
what is the Big bang theory
that the universe began with an explosion and has been expanding ever sience
what roles does gravity play in the solar systeM/
hoolds planets in place
helps them orbit the sun and rotate themselves
what is a light year
how far light can go in a year
what is the speed of light
182000 meters per second
what are subatomic particles?
protons,neutrons and electrons
found in an atom
the boundary between two air masses is called a
front
what are the layers of the atmosphere?
exosphere
ionosphere
mesosphere
stratosphere
tropostphere
what is the acronym for the layers of the atmosphere?
einstine is my science teacher
the jet stream is found in which layer of the atmosphere
stratosphere
what kind of weather does low pressure bring?
wet
what kind of weather does high pressure bring?
druy
how to you calculate density
mass
_____
volume

mass / volume
what is density
the amount of matter and object holds
if you need to get 50 grams of sodium what equitment should you use
tripple beam balance
four nitrogen bases of DNA
GT: gautmine and cytosine
AT: atamine and thymine
phenotype
physical appearance
genotype
gene makup
dominant and recessive
recessive it a trait that does not have power over another trait
homozygous
the same Aa AA
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