Shared Flashcard Set

Details

Semester One Review
FLVS Earth Space
71
Science
9th Grade
05/11/2007

Additional Science Flashcards

 


 

Cards

Term
condensation
Definition
water vapor (a gas) is cooled and is changed to water in the liquid state[image]
Term
evaporation
Definition
water in liquid state is heated to a point where it is change to water vapor (a gas)[image]
Term
infiltration
Definition
water seeps down into the cracks and pore space in soil and rocks until it reaches the water table[image]
Term
precipitation
Definition
water in the form of hail, rain, sleet, snow, and so on, falls from the clouds[image]
Term
transpiration
Definition
water vapor is released into the atmosphere, by plants, as a product of photosynthesis[image]
Term
Step 1. Scientific Method: state the problem
Definition
What fertilizer will help plants grow?
Term
Step 2. Scientific Method: collect background information
Definition
Research fertilizers and plants
Term
Step 3: Scientific Method: state a hypothesis
Definition
I think Miracle Grow will help plants grow.
Term
Step 4: The Scientific Method: experiment
Definition
Give half of the plants fertilizer and measure their growth over a period of time.
Term
Step 5.Scientific Method: conclusion
Definition
Miracle grow helped plants to grow taller and healthier than the control group.
Term
What type of pressure system has:
warm and rising air
stormy weather
wind blowing into the area
Definition
Low Pressure System [image]
Term
What type of pressure system has:
clear skies, good weather
sinking air
relatively dry air
Definition
High Pressure System [image]
Term
What is the power that fuels the weather?
Definition
The Sun
Term
Green House Effect
Definition
Trapping of the Sun's energy within the Earth's Atmosphere to make the Earth livable.
Term
relative humidity
Definition
The amount of water vapor in the air at any given time is usually less than that required to saturate the air. The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapor density.
Term
What causes wind/weather?
Definition
The unequal heating of the earth.[image]
Term
Layers of the Earth's atmopshere from surface up.
Definition
[image]
Term
Pauses:
Tropopause etc.
What temperatue movement does this indicate?
Definition
A vertical temperature line indicates no change in temperature at those altitudes.
Term
implosion
Definition
Air pressure greater on the outside than inside. Example: the soda can experiment.[image]
Term
explosion
Definition
Pressure is greater inside than outside.[image]
Term
Air pressure decreases as you go farther up, why?
Definition
There are fewer and fewer molecules of gases as you go up in altitude causing the air pressure to decrease.
Term
As solar energy enters the Earth's atmosphere what three things can happen?
Definition
absorbed by the earth's surface reflected by clouds absorbed by the earth's ocean [image]
Term
When air, falling from an area of high pressure, moves into an area of low pressure, replacing the air that is rising, this creates __________ between the high and low pressure zones.
Definition
Wind
Term
Which two characteristics of the air mass affect the weather of the area over which it is passing?
Definition
temperature and moisture content of the air
Term
relative humidity
Definition
The amount of water vapor in the air compared to the amount of water vapor that the air could hold at a specific temperature is called__________.
Term
weather
Definition
The current atmospheric conditions
Term
climate
Definition
The long term average (30 years) weather conditions of an area.
Term
What produces the energy, initial motion, and direction of the surface currents in the oceans?
Definition
wind
Term
What two substances are found in the greatest abundance among substances dissolved in sea water?
Definition
Chlorine and Sodium (This is the chemical compostition of salt)
Term
gyres
Definition
large, circular, ocean currents
Term
warm water current example
Definition
Gulf Stream
Term
cold water current
Definition
Labrador Current
Term
The west wind drift circles the globe, near Antarctica, unimpeded
Definition
Circumpolar current
Term
0 degrees longitude is know as the
Definition
Prime meridian
Term
horizontal lines that encircle the globe, like the equator
Definition
lines of Latitude
Term
vertical lines that intersect at the poles
Definition
Longitude
Term
A geographical area over which surface water flows and collects into rivers, lakes, ponds, and other surface water features.
Definition
watershed
Term
Currents which create areas rich in nutrients, which provides food for large numbers of fish.
Definition
upwelling
Term
What % of the surface of the Earth is covered by water?
Definition
75%
Term
What % of the water of the Earth is usable by man (fresh)?
Definition
3%
Term
What % of the surface of the Earth is covered by land?
Definition
25%
Term
These things can happen to water as it reaches the ground following precipitation:
Definition
It evaporates.,It flows over the surface ,It seeps into the ground and becomes groundwater.
Term
Powerful agent of erosion that affects beaches
Definition
waves
Term
As altitude increases, air pressure __________.
Definition
decreases
Term
The most abundant gas in the atmosphere is..?
Definition
Nitrogen
Term
The second most abudant gas in the atmosphere is?
Definition
Oxygen
Term
4 factors that affect weather conditions are...
Definition
Heat
Moisture
Air movement
Air pressure
Term
air pressure
Definition
Due to the gravity of the earth, the gases are attracted to earth, essentially causing them to push down on anything they surround or are above.
Term
What earth motion is responsible for the Coriolis Effect?
Definition
the rotation of the earth on its axis (spinning) [image]
Term
Instrument used to measure air pressure in the atmosphere.
Definition
barometer
Term
highest point on a wave
Definition
crest[image]
Term
lowest point on a wave
Definition
trough[image]
Term
distance between waves
Definition
wave length[image]
Term
distance between midpoint and crest
Definition
wave height[image]
Term
Study the ocean floor features
Definition
[image]
Term
Readily available sources for drinking water include:
Definition
rivers, lakes and groundwater
Term
observation
Definition
A direct sensory experience. Example: "I saw the footprint."
Term
inference
Definition
An assumption based on an observation. Example:"I saw the animal tracks and knew a lion must be nearby." You did not see the lion but you made an assumption based on the observation.
Term
a scientific theory
Definition
Often debated and changing scientific belief. Theories do not become laws.
Term
Scientific Laws
Definition
An accepted understanding of the natural world. Example: The Law of Gravity
Term
psuedo-science
Definition
Untested and uproven beliefs. Example:Astrology
Term
real science
Definition
Testable and supported by experimentation.
Term
Cryosphere
Definition
frozen areas of the Earth
Term
Geosphere
Definition
the land and surface features of the Earth including earthquakes, volcanoes and mineral resource etc.
Term
Biosphere
Definition
the living organisms on the Earth
Term
Hydrosphere
Definition
water moving through the cycle on Earth and in the atmosphere
Term
Atmosphere
Definition
the gases surrounding the Earth including the troposhere where all weather takes place
Term
weather expected in a low pressure system
Definition
Warm air, storms
Term
weather expected from a high pressure system
Definition
cold air and calm weather
Term
Know the gases in the atmosphere and their functions
Definition
Oxygen:breathing
Carbon Dioxide:Plants need it, warms the Earth
Ozone:Keeps out harmful rays of the Sun
Nitrogen: The most abundant gas
Term
[image]
Definition
Know the parts of the water cycle
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