2. two clear liquids are combined in a
beaker. a yellow solid forms and sinks to
the bottom of the beaker. in addition to
color change, what other indication is
there of a chemical change?
a. ductility
b. gas formation
c. convection
d. formation of a precipitate

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.