Unit 1 Vocab

Question 1

coal, oil, and natural gas that are derived from fossilized biological material millions of years ago

Answer 1

fossil fuels

Question 2

field of study including environmental science & additional subjects such as environmental policy, economics, literature, & ethics

Answer 2

environmental studies

Question 3

amount per person in a country or unit of population (total quantity/ total number of people in a country)

Answer 3

per capita

Question 4

any categories, conditions, factors, or traits that differ in the natural world or in experimental situations

Answer 4

variable

Question 5

variable that is being tested

Answer 5

independent variable

Question 6

variable that is the result of a an experiment

Answer 6

dependent variable

Question 7

prediction that there is not difference between groups or conditions that are being compared

Answer 7

null hypothesis

Question 8

how close a measured value is to the actual/true value

Answer 8

accuracy

Question 9

how close the repeated measurements of a sample are to one another

Answer 9

precision

Question 10

an estimate of how much a measured or calculated value differs from a true value

Answer 10

uncertainty

Question 11

smallest particle that can contain the chemical properties of an element

Answer 11

atom

Question 12

a substance composed of atoms that cannot be broken down into smaller, simpler components

Answer 12

element

Question 13

a chart of all chemical elements currently known, organized by their properties

Answer 13

periodic table

Question 14

number of protons in the nucleus of a particular element

Answer 14

atomic number

Question 15

a measurement of the total number of protons & neutrons in an element

Answer 15

mass number

Question 16

increase in the acidity of oceans

Answer 16

ocean acidification

Question 17

nucleic acid, genetic material containing the code for reproducing components of the next generation; organisms pass on to their offspring

Answer 17

DNA (deoxyribonucleic acid)

Question 18

nucleic acid translating the code in DNA, makes synthesis of proteins possible

Answer 18

RNA (ribonucleic acid)

Question 19

highly organized living entity consisting of the 4 types of macromolecules & other substances in a watery solution, surrounded by a membrane

Answer 19

cell

Question 20

system in which exchanges of matter or energy occur across system boundaries

Answer 20

open system

Question 21

system in which matter or energy exchanges do not occur across boundaries

Answer 21

closed system

Question 22

addition to a system

Answer 22

input

Question 23

loss from a system

Answer 23

output

Question 24

analysis to determine inputs, outputs, & changes in a system under various conditions

Answer 24

systems analysis

Question 25

state in which inputs equal outputs so the system does not change over time

Answer 25

steady state