Page 37 - ICC Science Dictionary (spreads)

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

ionising Radiation that is able to remove B2, B6, P6 justify Use evidence from the information Command
radiation electrons from atoms or molecules supplied to support an answer. word
to produce positively charged kinetic Energy which an object possesses P1, P2, P3, P5,
particles called ions. energy by being in motion. P8
irradiation Process of exposing an object P4 kinetic An energy store which fills when TP1
to a source of radiation. Eg fruit energy store an object speeds up (gets faster).
exposed to gamma rays in order
to destroy bacteria is said to have label Provide appropriate names on a Command
been irradiated. diagram. word
irregular A shape with unequal side P3 lactic acid A toxic chemical produced during B4
Shape lengths. anaerobic respiration in animals.

irrigation The channelling of water from B4 landfill sites Places where refuse is buried B7a, B7b, C10
rivers and streams to fields in order underground.
to help crops grow. large Lower part of the intestine from TB4
irritant Causes a temporary or reversible TC1 intestine which water is absorbed and
damage of living tissue such as eyes where faeces are formed.
and skin at the point of contact. LDR A Light Dependent Resistor is a P2
isotope Atoms of an element with the same C1, P4 type of resistor which is affected
number of protons and electrons by changes in light levels. A
but different numbers of neutrons. cadmium sulphide layer causes a
decrease in resistance in the light
IVF The letters stand for 'in vitro B5 and increase in the dark.
fertilisation'. This involves bringing
the sperm and the egg together to leukemia Cancer of the blood cells. B3
create an embryo, which is placed lever A simple machine consisting of a TP4, P5
into the woman's womb to increase pivot, effort and load.
the chance of giving birth.
LH Luteinising Hormone, secreted B5
joints Places where bones meet. TB1 by the pituitary gland, which

journal A science magazine which C9 stimulates ovulation.
normally specialises in a specific lichen A type of fungus that grows on B6
area of science and publishes rock.
research which has been done life processes The key reactions that all living B7a, B7b
by scientists and checked (peer organisms complete.
reviewed) by other scientists.