Mass, Viscosity and Density Crossword Puzzle

QUESTIONS LIST:

• viscosity : how thick a liquid is and how easily it can flow
• expansion : this happens when particles get heated
• mass : quantity of matter in a physical body
• liquid : this state sticks together but is more spread out
• particles : a minute portion of matter
• molecule : a group of two or more atoms
• contraction : this happens when particles get cooled
• density : measure of mass contained in a particular volume
• solid : this is a compacted state of matter
• gas : this is a freely moving state of matter