List of Words for Letter ‘E’

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earthquake A sudden shaking of the rock that makes up Earth’s crust.
echinoderm A spinyskinned invertebrate.
echo A repetition of a sound produced by reflection of a sound wave from a surface.
ecosystem The living and nonliving things in an environment, and all of their interactions.
effort force amount of force needed to move a load.
electromagnet A magnet formed when electric current flows through wire wrapped in coils around an iron bar.
electromagnetic spectrum A range of all light waves of varying wavelengths, including the visible spectrum.
element A substance that is made up of only one type of matter.
endangered Close to becoming extinct; having very few of its kind left.
endoskeleton An internal supporting structure.
energy The ability to do work.
energy pyramid A diagram that shows the amount of energy available at each level of a food web in an ecosystem.
environment All the living and nonliving things in an area.
erosion The removing of weathered rock.
evaporation The process of a liquid changing to a gas.
excretory system The organ system that removes wastes from the body.
exoskeleton A hard covering that protects the bodies of some invertebrates.
experiment A test designed to support or disprove a hypothesis; to perform such a test.
extinct Said of an organism no longer alive on Earth.