eps final

Question 1

cross-cutting

Answer 1

igneous rock is younger than the rock it has intruded or cut or cross. faults too.

Question 2

superposition

Answer 2

in a sequence of undisturbed rocks, the oldest rocks will be at the bottom.

Question 3

absolute time

Answer 3

identifies the actual date of an event. if can tell the speed at which events are happening.

Question 4

included fragments

Answer 4

little rocks in a big rock are actually older

Question 5

unconformity

Answer 5

a break in the rock record. it shows where a part of the rock record is missing due to weathering and erosion.

Question 6

key bed

Answer 6

a bed layer of rock that is distinguishable by the events that occurred over large horizontal distances»> mt. helen.

Question 7

index fossil and 3 indentifications

Answer 7

used to date rock layers to a narrow range of time

• abundant
• easy to identify
• widely distributed

Question 8

lateral continuity

Answer 8

sedimentary layers extend laterally in a thinning edge.

Question 9

relative time

Answer 9

puts events into sequence but does not date actual time of occurrence.

Question 10

principle of uniformitarianism

Answer 10

james hutton

-the forces and processes that we currently see shaping our planet also operated in the past.

Question 11

original horizonaity

Answer 11

sediment accumulates in horizontal layers. if the rocks are folded etc. we can infer what happened after it formed.

Question 12

positive feedback v negative feedback

Answer 12

positive= warmer temps etc.

negative=cooling temps etc.

Question 13

endo v exothermic

Answer 13

endo= cooling/absorbing energy
exo= heating/releasing energy

Question 14

conduction

Answer 14

the transfer of energy through matter from particle to particle
-conducting like a conducter :)

Question 15

convection

Answer 15

the transfer of heat energy in a gas or liquid by movement currents
-changes in temp causes changes in density

Question 16

radiation

Answer 16

electromagnetic waves that directly transport energy through space
-electromagnetic spectrum

Question 17

latent heat

Answer 17

the energy absorbed by or released from a substance during phase change

Question 18

temprature

Answer 18

the average kinetic energy or energy of motion. per atom of a substance.

Question 19

heat

Answer 19

the total kinetic energy of all the atoms composing a given amount of a substance.

Question 20

half lfe

Answer 20

the time it takes for half of the atom to decay to a stable end product