What is left when you burn wood?, ash, cracks, Lava comes out of a volcano that ..., erupts., explodes., Is it possible for a dormant volcano to erupt?, No, it isn't., Yes, it is., A series of changes with a specific result is..., a process., progress., A book with five hundred pages is..., thin., thick., What is the top part of an area called?, surface., supplies., It comes out of a pot when you boil water., steam, smoke, One of the levels of materials that are on top of each other are..., piles., layers., Don't dive here! The water isn't... enough!, shallow, deep, A substance like air, which is not solid or liquid, is a..., blast., gas., The opposite of an active volcano is a(n)...volcano., dormant, extinct, When we... something, we try to hide it or to protect it., cover, melt, We didn't go swimming because the sea wasn't... ., calm, rough, Which verb means that something continues to happen for a period of time?, to pass, to last, If something hard turns into a thick liquid because of great heat, it is..., molten, frozen.

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