Environmental Science (Chapter 2)

Front 1

System

Back 1

Network of interprudent components & processes

Front 2

Open Systems

Back 2

Receive inputs from surroundings & gives outputs leaving system

Front 3

Closed Systems

Back 3

Don't exchange energy/matter

Front 4

Throughputs

Back 4

Flow of energy & matter in, through & out a system

Front 5

Equilibrium

Back 5

Stable balance

Front 6

Thresholds

Back 6

Tipping points

Front 7

Positive Feedback Loops

Back 7

Increase a process

Front 8

Negative Feedback Loop

Back 8

Finishes a process

Front 9

Conservation of Matter

Back 9

Matter changes from but isn't created/destroyed

Front 10

Atoms

Back 10

Smallest particles that exhibit characteristic of an element

Front 11

Atomic Number

Back 11

Number of protons per atom

Front 12

Isotopes

Back 12

Form of single atom that differs in atomic mass

Front 13

Ions

Back 13

Charged atoms

Front 14

Compound

Back 14

Made of different atoms

Front 15

Molecule

Back 15

Atoms that can exist as a single unit

Front 16

Acids

Back 16

Give up hydrogen ions in water

Front 17

Bases

Back 17

Bond with H+ ions

Front 18

pH

Back 18

Negative logarithms of H+ ions

Front 19

Organic Compounds

Back 19

What living organisms are made of

Front 20

DNA

Back 20

Determines heredity

Front 21

Cells

Back 21

Where processes of life are carried out

Front 22

Energy

Back 22

Ability to do something

Front 23

Kinetic Energy

Back 23

Energy for moving/doing something

Front 24

Potential Energy

Back 24

Stored energy

Front 25

Chemical Energy

Back 25

Stored in food

Front 26

Heat

Back 26

Energy that can be transferred

Front 27

1st Law of Thermodynamics

Back 27

Energy is conserved

Front 28

2nd Law of Thermodynamics

Back 28

Less energy is available to do work

Front 29

Entropy

Back 29

Disorder helps to increase natural systems

Front 30

Primary Producers

Back 30

Create compounds using sunlight, air & water

Front 31

Chemosynthesis

Back 31

Extracting energy for life from inorganic compounds

Front 32

Photosynthesis

Back 32

Plants capture light energy to make chemical bonds

Front 33

Cellular Respiration

Back 33

Splitting carbon & hydrogen atoms

Front 34

Species

Back 34

Organisms genetically similar to breed & produce

Front 35

Population

Back 35

Members of a species living in the same area

Front 36

Biological Community

Back 36

Plants, animals & microorganisms living & interacting together

Front 37

Ecosystem

Back 37

Biological community

Front 38

Producer

Back 38

Organisms that produce organic material by photosynthesis

Front 39

Productivity

Back 39

Amount of biomass produced in a given area

Front 40

Biomass

Back 40

Biological material

Front 41

Food Web

Back 41

Indivual food chains

Front 42

Tropical Levels

Back 42

Organisms feeding status in an ecosystem

Front 43

Scavengers

Back 43

Clean up dead carcasses

Front 44

Detritivores

Back 44

Consume litter, debris & dung

Front 45

Decomposer

Back 45

Recycling of organic material

Front 46

Carbon Cycle

Back 46

Circulation & retilization of carbon atoms

Front 47

Nitrogen Cycle

Back 47

Circulation & retilization of nitrogen atoms

Front 48

State variable

Back 48

Describe the state of a dynamic system

Front 49

Matter

Back 49

Takes up space but has no mass

Front 50

Mass

Back 50

Quantity of matter that a body contains