Vocabulary Words 52-76

Question 1

earthquake

Answer 1

the shaking of the ground caused by a sudden release of energy in the Earth’s crust

Question 2

ecosystem

Answer 2

an integrated unit of a biotic community, its environment, and interactions

Question 3

efficiency

Answer 3

the effectiveness of a system determined by comparing input and output

Question 4

electromagnet

Answer 4

a magnet consisting of a coil of wire wrapped around a core that becomes strongly magnetized when a current flows through the wire

Question 5

electromagnetic radiation

Answer 5

the release and spread of the entire range of the electromagnetic spectrum

Question 6

electromagnetic waves

Answer 6

waves generated by the oscillation of a charged particle and marked by periodic variations of electric and magnetic fields

Question 7

electron

Answer 7

a stable basic particle that is negatively charged and orbits the nucleus of an atom

Question 8

element

Answer 8

a substance that cannot be reduced to a simpler form by chemical means, they are widespread in the structure of the universe

Question 9

energy

Answer 9

a quantity that measures the ability to do work

Question 10

energy pyramid

Answer 10

a diagram that is shaped like a pyramid that compares the energies of animals on the different levels of the feeding order

Question 11

energy transfer

Answer 11

the change of energy from one form to another

Question 12

entropy

Answer 12

the measure of randomness of a closed system

Question 13

environment

Answer 13

the conditions affecting an organism, including all nonliving things

Question 14

equator

Answer 14

an imaginary line along Earth’s surface that divides the Northern and Southern hemispheres

Question 15

erosion

Answer 15

the process by which Earth’s surface is broken down and sediments are transported

Question 16

evaporation

Answer 16

the state change of a liquid into a gas due to the addition of heat

Question 17

experiment

Answer 17

a controlled procedure conducted to discover, demonstrate, or test a hypothesis. It follows the scientific method

Question 18

fault

Answer 18

a break in rock where Earth’s crust has been displaced

Question 19

First Law of Thermodynamics

Answer 19

the principle that thermal energy is always generated inside a system when it does work

Question 20

food chain

Answer 20

the transfer of energy through different stages due to the feeding patterns of organisms

Question 21

food web

Answer 21

the feeding relationships in a food chain concerning a group of organisms

Question 22

force

Answer 22

a quality that produces acceleration; a push or pull

Question 23

fossil

Answer 23

a whole or part of a plant or animal preserved in sedimentary rock

Question 24

fossil fuels

Answer 24

the remains of animals or plants from previous ages now suitable for use as fuel

Question 25

frequency

Answer 25

the number of cycles or waves per unit time