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43 Cards in this Set

  • Front
  • Back
based on using your senses
conclusions based on observation
putting objects with similar characteristics or environmental factors together to make them easier to study
amount of matter in an object
the amount of space an object takes up
percentage error formula
correct minus guess over correct times 100
does density change when cutting or breaking a pure substance?
where does the independent variable go?
on the bottom (horizontal)
inverse relationship
one value increases, the other decreases
direct relationship
both values increase
when temperature increases, volume....
when temperature increases, density...
when volume increases due to heat, density...
when pressure increases, volume...
when pressure increases, density...
for most earth substances, it is the densest in what phase of matter?
what is the exception?
water--most dense as a liquid
at what temperature is water most dense?
4 degrees celcius
as the temperature celcius goes from 1 to 7, how does the density of water change?
it goes up, then reaches 4 as its highest point, and then goes down again
what are the three basic dimensional qualities?
time length and mas
what is the formula for density?
density=mass over volume
all biotic and abiotic factors in the universe
what is the equation for rate of change?
change in value over time
what is a cyclic change?
changes in the environment that occur in some orderly fashion in which the events constantly repeat
what happens to a gas when pressure increases?
it turns to a liquid
when does a change occur
when the properties or characteristics of a part of the environment have been altered
what can change be described with respect to?
to time and space (location)
what are some cyclic changes?
phases of the moon, movement of celestial objects (sun, moon, stars, planets), the number of sunspots, tides, seasonal events,day and night, and the water and rock cycles
natural hazard
non-human-related object, process, or situation that has the possibility of causing loss of life, personal injury, or loss of property
boundary between regions with different properties across which energy is usually exchanged
example of conversion of energy
an earthquake-internal earth energy stored in rocks is released from the rocks and converted into sound, heat, and mechanical energy of earth's shaking surface
dynamic equilibrium
environmental equilibrium resulting from opposing forces or actions balancing out
2 examples of dynamic equilibrium
1. rate of erosion (takes away rocks and soil) and rate of deposition (leaves sediment and rocks behind)
2. oxygen in the atmosphere
natural resources
materials and energy sources found in the environment that humans use in their daily lives
examples of natural resources
air you breathe, water you drink, plants and animals used for food and clothing, energy from the sun, fossil fuels, rock, and mineral
when the concentration of any substance or form of energy reaches a proportion that adversely affects people, their property, or plant or animal life.
what are some causes of pollution?
technology, volcanic ash from volcanic eruptions, high concentrations of pollen in the air, X-rays from uranium and radon in rocks
what are some pollutants?
solids, liquids, gases, biologic organisms, and forms of enery such as heat, sounds, visible light, and nuclear radiation
generally, what kind of environment causes high pollutant levels?
urban environments, especially with many industrial processes
name some natural pollutants
volcanic ash, radioactive elements, radon, pollen, mold spores, carbonix acid, CO2 and H20=acid rain, ultraviolet light
order of layers of earth
1. hydrosphere (oceans and waters)
2. lithosphere (crust)
3. atmosphere (layers of air that surround the earth?
layers of earth least dense to most dense
layers of earth from thinnest to thickest