Relier Pairs Earth's Water Vocabulary MatchVersion en ligne Match the words from our book Earth's Water. par Beth Prather 1 precipitation 2 polluted 3 invisable 4 evaporation 5 gas 6 solid 7 condensation 8 liquid able to flow and change shape while keeping its size. water vapor (water in its gas form) turns into liquid. You may see this change on the outside of a cold glass cup, the warm side of windows, and in the clouds up in the air. having a firm or hard form or shape unable to be seen made dirty or harmful When liquid changes to a gas (i.e. boiling water changes to steam on the stove) matter that can freely change shape and size; often it can't be seen. water that falls to the ground such as, hail, sleet, rain or snow