Page 17 - ICC Science Dictionary (spreads)

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

corrosion Where a metal reacts with a TC4 crystal lattice The regular arrangement of C6
chemical, typically oxygen to particles (atoms, molecules or
form a chemical compound. ions) in a crystal.
When chemicals in the water dissolve C10 crystallisation The process of producing crystals C1, C4
minerals in the rocks, causing them from a solution by evaporating the
to break up (also called solution). solvent.
corrosive When a chemical damages a TC1 culture A gel or liquid used to grow B1a, B1b
substance that it comes into medium microorganisms, or cells, tissues
contact with, e.g, skin. or organs.
counter Currents flowing in the opposite B2 cultured Grown deliberately by humans. B3
current flow direction, for instance, blood and
urine flow in the kidney tubule, current Moving electric charges, e.g. TP3, P2
and water and blood in fish gills. electrons moving through a metal
wire.
covalent A bond between atoms formed C2, C5, C7,
bond when atoms share electrons C10 cuticle The outer layer of a leaf which B3
to achieve a full outer shell of protects it.
electrons. cuttings Part of a plant stem, leaf, or root B1a, B1b, B6
cracking The breaking down of large C7 cut off and used for producing
hydrocarbon molecules into a new plant. An artificial
smaller, more useful hydrocarbon propagation method.
molecules by vaporising them and cystic fibrosis A disorder that mainly affects B3, B6
passing them over a hot catalyst. the lungs, pancreas, liver, and
intestine. The main symptom is
crude oil Mixture of hydrocarbons, mainly C1, C3, C7,C9,
alkanes, formed over millions of C10 difficulty breathing.
years from the remains of ancient cytoplasm The jelly-like fluid on the inside TB1, B1a, B1b,
dead marine organisms. of the cell that allows for the B2, B6
transport of substances around
crust A thin, outer layer made of solid TC5, C4, C10
rock covering the Earth. the cell and is the site of many
chemicals reactions.
crystal A solid containing particles (atoms, C1, C4, C10
molecules or ions) joined together dark energy An unknown form of energy, P8
to form a regular arrangement or put forward as a solution to the
repeating pattern. problem of why the expansion of
the Universe is accelerating.