A
B
C
D
E
100

the power or right to give orders, make decisions, and enforce obedience

authority

100

a hot drink made from the roasted and ground seeds (coffee beans) of a tropical shrub

coffee

100

good treatment or behaviour without favouritism or discrimination

fairness

100

contributes to the greenhouse effect by absorbing infrared radiation; carbon dioxide and chlorofluorocarbons are examples

greenhouse gas

100

hot fluid or semi-fluid material below or within the earth's crust

magma

200

a set of printed or written questions with a choice of answers

questionnaire

200

beautiful in a dramatic and eye-catching way

spectacular

200

young or seeming young

youthful

200

the quality of water measured by saltiness

salinity

200

the supply of water to land or crops to help growth, typically by means of channels

irrigation

300

the force that attracts a body towards the centre of the earth

gravity

300

the mixing of substances by the natural movement of their particles

diffusion

300

an optical instrument with a lens for each eye

binoculars

300

the period following the onset of puberty during which a young person develops from a child into an adult

adolescence

300

someone paddling a canoe

canoeist

400

the gelatinous liquid that fills the inside of a cell; composed of water, salts, and various organic molecules

cytoplasm

400

a substance that increases the rate of a chemical reaction

catalyst

400

a widespread occurrence of an infectious disease in a community at a particular time

epidemic

400

the outer limits or edge of an area or object

periphery

400

an act of speaking one's thoughts aloud when by oneself or regardless of any hearers, especially by a character in a play

soliloquy

500

allowing light, but not detailed shapes, to pass through; semi-transparent

translucent

500

a rising of the sea as a result of wind and atmospheric pressure changes

storm surge

500

not able to be destroyed

indestructible 

500

the formation of a word from a sound associated with what is named

onomatopoeia

500

the process of making something, especially a gas, liquid

liquefaction