List of Words for Letter ‘E'
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ecosystem The
living and nonliving things in an area interacting with each other.
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efficiency The
ratio between the work done by a machine and the work put into it.
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egg A
flow of electrons, particles having negative electrical charges.
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electricity A flow of electrons,
particles having negative electrical charges.
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electromagnet A
device that is magnetized by current electricity.
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electromagnetic spectrum The full range of wavelengths, arranged from long waves with the lowest amount of energy to short waves with the highest amount of energy.
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electron A
particle with a negative electrical charge.
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element A
pure substance that cannot be broken down into a simpler substance and is made of only one type of atom.
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elevation The
height of a place above sea level.
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emulsion A
stable homogeneous mixture of very small droplets suspended, rather than dissolved, in a liquid.
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endangered A
species whose numbers have been so reduced that the species is in danger of extinction.
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endoskeleton An
inner supporting structure of bone.
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endothermic A
chemical reaction that absorbs heat energy.
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energy The
ability to do work.
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energy pyramid A
model that shows how energy flows through a food chain.
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epicenter The
location on the surface of Earth above the focus of an earthquake.
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era Long
stretches of time used to measure Earth’s geological history.
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erosion The
picking up and removal of rock pieces and other particles.
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estuary Water
ecosystems that are located where rivers flow into oceans.
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evaporation The
slow changing of a liquid to a gas when particles vaporize at the water’s surface.
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excretion The
removal of wastes from the body.
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exoskeleton A
hard covering that protects an invertebrate’s body.
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exothermic A
chemical reaction that gives off heat energy.
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expansion redshift The absorption lines that result in longer wavelengths from galaxies moving away from each other as space expands.
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experiment To
perform a test to support or disprove a hypothesis.
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extinct Said
of a species that no longer exists in the wild or in captivity.