WWER-1000 Unit 6

an object or machine that has been invented for a particular purpose

a large machine in which atoms are either divided or joined in order to produce power

a measure of how much a substance reacts when it is mixed with another substance

a state in which or a place where you are safe and not in danger or at risk

the force that attracts objects towards one another, especially the force that makes things fall to the ground

very fast movement

a series of related things or events, or the order in which they follow each other

intended to stop something before it happens

the act of putting something inside something else, or adding something to something else

something dangerous or serious that happens suddenly and needs fast action in order to avoid harmful results