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Across
5.Salt formed when iron oxide reacts with sulfuric acid
7.This technique could tell you the number of dyes in a felt-tip pen
8.Igneous rock with large crystals formed underground
9.Rock type formed by deposition then compaction
11.Rock type formed by intense heat and pressure
13.This contains more than one type of atom chemically bonded together
15.Useful technique for getting pure water from sea water
16.Term for the breakdown of rock
17.This technique would be good for isolating a salt from its solution
18.Black glassy igneous rock formed in the sea
21.Type of physical weathering caused by the expansion of ice
22.Term for molten rock below the surface of the earth
23.Term for molten rock on the surface of the earth
Down
1.This contains more than one type of substance which are not chemically bonded to each other
2.Salt formed when lithium hydroxide reacts with hydrochloric acid
3.Light igneous rock which can float on water.
4.Metamorphic rock formed from limestone
6.This contains only one type of atom
7.Gas released when a metal carbonate reacts with acid
10.Salt formed when lead carbonate react with nitric acid
12.Gas released when zinc reacts with hydrochloric acid
14.This technique would be good for removing sand from water
19.Igneous rock with small crystals formed underground
20.Rock type formed when molten rock cools
21.Ancient remains of a plant or animal

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