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science final review

science

QuestionAnswer
what is the cause for a land breeze, which way does it move, and night or day? land cools down quicker than the water at night causing a convection current. cool air moves out towards the sea. it moves counter clockwise and is at night
what is the cause for a sea breeze, which way does it move, and night or day? land heats up faster during the day. cool air from the sea moves in towards the land. it moves clockwise and is during the day
in ___________ the suns rays warm the earth radiation
in _________ the earth warms the air conduction
describe the movement of fluids during convection cool (more dense) air or water sinks + moves in underneath the warm (less dense) air/water. warm air/water rises causing movement-a convection current
sea and land breezes are examples of what type of heat transfer? convection
give 2 examples of radiation: 1. sun heating a rock 2. sun tanning
give 2 examples of convection: 1. a 2 story house gets hotter on the 2nd story 2.hot water near the equator circulates with the cooler water near the poles
give 2 examples of conduction: 1. metal pan being heated by the burner 2. touching a hot stone + getting burned
how do warm ocean currents affect coastline climates? they bring warmer air + create a warmer climate
how do cold ocean currents affect coastline currents? they bring cold air creating a colder climate
define air mass: a large body of air that takes on similar temperatures + humidities
____________ gets its properties from warm areas near the equator tropical air mass
____________ gets its properties from cold areas near the poles polar air mass
____________ gets its properties from over land continental air mass
____________ gets its properties from over ocean maritime air mass
how do warm air masses affect weather bring warmer weather + low pressure- humid
how do cold air masses affect weather bring colder weather + high pressure- dry
air tends to move from areas of ______ pressure to areas of _______ pressure high, low
winds in a high pressure area will flow in what direction clockwise
winds in a low pressure area will flow in what direction counter clockwise
low pressure areas are associated with what kind of temperatures and humidity warmer temperatures and high humidity
high pressure areas are associated with what kind of temperatures and humidity colder temps and low humidity
what is the symbol for a warm front red, half circles
what type of weather is associated with a warm front warmer temp. humid air, light rain that lasts over a few days
what is the symbol for a cold front blue, pointed triangles
what type of weather is associated with a cold front cold air, thunderstorms during, clear skies after, dry air
elements in the same group have what in common? valence electrons and chemical property
elements in the same period have what in common? electron shells
what gives the name of the element number of protons
how do you find the neutrons? subtract the number of protons from the atomic mass
protons and _________ usually have the same number electrons
what kind of charge does a proton have? positive
what kind of charge does a neutron have neutral
what kind of charge does a electron have negative
what is a coefficient and what does it represent the large number before a element in a chemical equation and it represents the number of molecules and you multiply them by the subscript to find the number of molecules
what are the smaller numbers after the elements in a chemical equation called and what do they represent they are called subscript and they tell the number of atoms
what are the 5 signs of a chemical change 1. unexpected color change 2. odor produced 3. gas produced 4.solid precipitate 5. temperature change/ light produced
how do you know if an example is talking about speed? it will say the speed the object is going
how do you know an example is talking about acceleration? it will give you a change in speed or direction such as a runner running the 400 m dash(the curbs in the track) or a car slowing down for a stop sign
how do you know an example is talking about velocity? it will give you the speed and direction
Created by: katy.romyy