Lecture 1
Lecture 2
Lecture 2 Cont
Lecture 2 Cont
Lecture 2 Cont
100
the amount of matter in a certain about of space
What is density?
100
a change of matter that does not change its idenity
What is a physical change?
100
the chemistry of materials found in the earths crust
What is geochemical?
100
The movement of nitrogen between plants, animals, bacteria, the atmosphere and soil
What is the nitrogen cycle
100
The movement of oxygen between the atmosphere, living organisms and the earth crust
What is the oxygen cycle?
200
mass/volume
What is the formula for density?
200
the process where matter chemically is changed into something completely new or different
What is a chemical change?
200
a sequence of events that repeats over periods of time
What is a cycle?
200
Creates DNA and plants use it to make chlorphll
Why is nitrogen cycle important?
200
Plant and Animal life would not exist without it
Why is the oxygen cycle important?
300
length x width x height,or three measurements
What is volume?
300
oxygen, carbon, nitrogen, hydrogen
What does the human body need?
300
the building block of life, and is found in all living and once living material
What is carbon?
300
Bacteria fixes it, lightening, animal urine and humans
How does nitrogen enter the cycle?
300
Photosynthesis, atmosphere, and marine animals die within shells
How does oxygen enter the cycle?
400
Safety, Engineering, Economics, and Energy
What are 4 reasons you need to know density?
400
nitrogen, oxygen, argon, carbon, hydrogen, sulfur
What does the atmosphere need?
400
living organisms breathing, decaying organic matter, fossil fuels burning, volcanic eruptions
How does carbon enter the cycle?
400
Bacteria and imonium
How does nitrogen leave the cycle?
400
Respiration, decay, long-term storage in crust and rusting
How does oxygen leave the cycle?
500
low density or high density hurts worse
What is the object with less density?
500
iron,oxygen, silicon, magnesium, sulfur, nickel, calcium, aluminum
What does earths crust need?
500
long term storage, limestone, plankton, decay/death of living organisms, photosynthesis
How does carbon leave the cycle?
500
Hydrosphere, Biosphere, Geosphere and Atmosphere
What are the earths four systems?
500
Earths materials move through geo-chemical cycles
What causes physical and chemical changes in matter?
M
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