Page 63 - ICC Science Dictionary (spreads)

Word Definition Topic(s) Word Definition Topic(s)

theory of A theory put forward by Charles B7a, B7b thyroxine Hormone produced by the thyroid B5
evolution Darwin that all living creatures gland that increases the basal
that exist today, including human metabolic rate.
beings, have evolved over a tissue Group of cells of one type. TB1
period of millions of years from
more primitive life forms. A group of similar cells that carry B1a, B1b
out the same function, eg muscle
therapeutic Using cloning technology for B1a, B1b
cloning medicinal purposes. One example tissue.
is to use a person's DNA to clone tissue culture A technique where animal or B1a, B1b, B6
one of their organs for use in plant cells or tissue are isolated
transplanting. and transferred to a sterile culture
thermal A measure of how well a material P1 medium. If successful, the cells
conductivity conducts energy when it is heated. will continue to grow and divide,
though not indefinitely.
thermal Material that allows heat to move TP6
conductor quickly through it. tissue fluid Fluid which is derived from blood B1a, B1b, B2
plasma that passes through the
thermal de- Type of reaction in which a C3, C5 walls of capillaries.
composition compound breaks down to form two
or more substances when it is heated. titration A quantitative procedure in which TC3, C4
two solutions react in a known
thermal The quantity of energy stored in a TP1, TP6, C5, ratio, so if the concentration of
energy substance due to the movement P1, P3, P8 one solution is known and the
of its particles. volumes of both are measured,
A more formal term for heat the concentration of the other
energy. solution can be determined.
thermal Material that only allows heat to TP6 titre Volume of one reactant needed C4
insulator travel slowly through it. to react completely with the other

thermistor An electrical device whose P2 reactant in a titration.
resistance decreases as its tongs A scissor-like tool used to pick up and P4
temperature increases. manipulate objects without touching
thrust A force used to move a body P5 them directly with the hands.
forwards or up, eg the rocket had toxic Poisonous. B3, B4, B5,
a thrust of 10,000 N. B7a, B7b, C2,
C7, C10