Page 25 - ICC Science Dictionary (spreads)

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

enzyme A protein which catalyses or B2, B3, B5, ethene The simplest alkene, consisting of B5, C3
speeds up a biological chemical B7a, B7b, C6, two carbon atoms joined by a
reaction, including digestion. C7, TB4 double bond, surrounded by four
evolution The study of the distribution and B2 hydrogen atoms.
epidemiology patterns of health and disease. ethical Relating to right and wrong, eg B1a, B1b, B7a,

epidermal Cells of the epidermis, the outer B2 ethical companies are often ones B7b
cells covering layer of an organism. that act in a responsible way.

epithelial cell A cell that forms part of an B2 ethics Having morals and principles and B3
epithelium. 'doing the right thing', irrespective
of profit.
equilibrium A state of balance. TP4
eukaryote A single-celled organism or a cell B3
In chemical reactions, a situation C6, C10 of a multicellular organism that
where the forward and backward has a nucleus.
reactions happen at the same eukaryotic A type of cell that has a nucleus. B1a, B1b
rate, and the concentrations of cell
the substances stay the same.
eutrophica- 'Hyper-nutrition' resulting from B7a, B7b
equilibrium A measure of the relative C3, C6, C10 tion fertiliser pollution of aquatic
position concentrations of substances in ecosystems.
an equilibrium, showing if there
are more reactants or products at evaluate Students should use the Command
equilibrium. information supplied, as word
well as their knowledge and
error See also uncertainty. Thinking understanding, to consider
scientifically evidence for and against.
ester A type of organic compound B2, C7 evaporate When liquid is vaporised and turns B4, P3
formed in the reaction between to a gas.
an alcohol and a carboxylic acid.
evaporating A round porcelain dish which C10
estimate Assign an approximate value. Command basin contains a solution which is
word heated from below so that the
ethanol The alcohol which is produced as B4, C1, C3 solvent evaporates, leaving the
a result of fermentation of sugars solute in the dish.
by yeast. evaporation The process in which a liquid TC2, B2, C1,
changes state and turns into a gas. C2, C4, P3