Page 58 - ICC Science Dictionary (spreads)

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

sea levels A measure of the average height C9 sexual The formation of a new organism B6
of the sea's surface. reproduction by combining the genetic

secondary An organism that obtains its energy B7a, B7b material of two organisms.
consumer by eating the primary consumer. show Provide structured evidence to Command

sediment Small fragments of rock and soil B6 reach a conclusion. word
that form layers. sieve tube The conducting cells that, end to B2

sedimentary Rocks that are formed through TC5, C9 end, make up the phloem.
the deposition of sediments, eg significant Giving a number to a specified B1a, B1b
limestone and sandstone. figure number of significant figures is a

sedimentary A type of rock formed by the B7a, B7b method of rounding. For example,
rock deposition of material at the in the number 7483, the most
earth's surface. significant, or important, figure is 7, as
its value is 7000. To give 7483 correct
seed Structure that contains the TB2 to one significant figure (1 sf), would
embryo of a new plant. be 7000. To 2 sf, it would be 7500.

seedlings A young plant developing from a B3 simple Separation method used to C1
seed. distillation separate a solvent from a solution.

seismic Shock waves travelling through P6 sine curve The shape of the graph obtained for P7
waves the Earth, usually caused by an y = sin x. The voltage produced by
earthquake. an ac generator follows a sine curve.

selective An artificial process in which TB6, B6 single Found in fish, heart consists of 1 atria B4, B5
breeding organisms with desired circulatory and 1 ventricle. The blood is pumped
characteristics are chosen to breed system to the gills to become oxygenated.
together for the next generation.
sketch Draw approximately. Command
semiconduc- Insulating material doped with P2 word
tor impurities to affect electron
energy bands and therefore sketch graph A line graph, not necessarily on Thinking
affect conduction properties. a grid, that shows the general scientifically
shape of the relationship between
sepal Protects the unopened flower TB2 two variables. It will not have any

series A circuit where one component P2 points plotted and although the
follows directly from another, eg axes should be labelled they may
three bulbs in a row with no junctions not be scaled.
are said to be connected in series.