What's the Matter? Crossword Puzzle

QUESTIONS LIST:

• evaporation : change of phase from liquid to gas
• gas : molecules are not connected, no definite shape or volume
• deposition : change of phase from gas to solid
• melting : change of phase from solid to liquid
• solid : tightly packed molecules; definite shape and volume
• condensation : change of phase from gas to liquid
• liquid : molecules connected but have freedom of movement; definite volume, no definite shape
• freezing : change of phase from liquid to solid
• sublimation : change of phase from solid to gas
• phase change : when one state of matter changes to another
• buoyancy : the ability to float
• density : the measure of something per unit volume
• molecules : when matter changes state, the volume changes but the number of _ stays the same