Look through the list of words and phrases and check if you know their Ukrainian equivalent. Use the Mini-Dictionary (UNIT 9) if necessary

dawn	mysterious rays
to penetrate	opaque objects
thorium	evident
to conserve residue	self-satisfaction
pitchblende	to give off
a triumphant	to go on (with the experiments)
bacterium	pure
minute	fascinating
to draw near	to obtain
to announce	neighbourhood
to astonish	radium

Explain the meaning of the words and phrases.

minute organisms, mysterious, to go on, to announce, pure, to obtain a fraction, a triumphant conclusion, to penetrate, to give off, residue

Match the words with their definitions.

	bacterium	a	a blackish mineral that is a type of uraninite and occurs in veins, frequently associated with silver: the principal source of uranium and radium
	residue	b	to enter into and permeate
	pitchblende	c	to make known publicly
	opaque	d	easily seen or understood; obvious
	to penetrate	e	exceptionally small; tiny
	evident	f	any of a large group of one-celled organisms that lack a cell nucleus, reproduce by fission or by forming spores, and in some cases cause disease
	fraction	g	impenetrable by light; neither transparent nor translucent
	to announce	h	a small part; a bit
	minute	i	the remainder of something after removal of parts or a part