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Science
California Science
Grade 4
e-Glossary
E
List of Words for Letter 'E'
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earthquake
a sudden shaking or trembling in Earth's crust
ecosystem
all the living and nonliving things that interact in an environment
electric current
a flow of electrical charges
electrical charge
a property of matter that tells whether something has a positive or negative charge
electromagnet
a magnet formed when electric current flows through wire coiled around an iron rod
element
a basic building block of all matter
emergent
a tree that rises above the forest around it
endangered
close to extinction
energy pyramid
a diagram that shows the amount of energy at each level of the food web in an ecosystem
environment
all the living and nonliving things that surround an organism
erosion
the transportation of weathered rock from one place to another
eruption
a violent outburst or outpouring
euglena
a type of protist that behaves like both a plant and an animal
exfoliation
a kind of physical weathering in which layers of rock peel off
experiment
an organized test designed to support or disprove a hypothesis
extinct
all dead; no more left alive on Earth
extrusive
a kind of igneous rock formed when magma cools and hardens above Earth's surface