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Roots Week 4
therm = heat,
temperature
endothermic (adjective)

heated from within
the body
“Warm blooded,” or endothermic animals
maintain their own body temperatures from
within.
exothermic (adjective)

requires heat to be
absorbed from
outside of the body
“Cold-blooded” animals, such as lizards
and snakes, are exothermic as they rely
on the sun to warm up.
therm (noun)

A unit of heat equal
to 1,000 great calories
Two units of therms would be equal to
2,000 calories when measuring heat.
thermal (adjective)

Related to heat or
temperature
Thermal underwear is often worn by
hunters to keep them warm during their
winter hunting expeditions.
thermodynamic (adj)

Caused or operated
by heat that has
changed into
different forms of
energy
Solar energy is thermodynamic
because the sun’s heat helps create
energy, which is then turned into
electricity.
thermograph (noun)

A device that
automatically writes
down (records)
changes in
temperature
Scientists track and record temperature
changes around the world with the use of
a thermograph.
thermometer (noun)

An instrument that
measures
temperature or
heat
The thermometer showed that poor Victor
was running a fever of 103 degrees.
thermophile (noun)

An organism that
has adapted to living
in very high
temperatures
(heat), such as
bacteria or algae
Thermophiles are organisms that survive
in hot, humid places such as this image of
bacteria.
http://www.nps.gov/yell/slidefile/thermalfeatures/thermophiles/page.htm
thermos (noun)

A container that is
used to keep things
warm, such as your
soup; a doublewalled container that
keeps things warm
Vince uses a thermos to keep his hot
chocolate warm when he goes sledding.
thermostat (noun)

A device used to
control the
temperature
The students begged Mrs. Ifflander to
turn up the thermostat to warm up her
classroom!