Phase Change Crossword Puzzle

QUESTIONS LIST:

• solid : a state of matter that holds its shape and a definite volume due to the attraction of molecules overcoming freedom of motion. the molecules move in place. this state of matter has the least freedom of motion.
• liquid : a state of matter that does not have a fixed shape but rather takes the shape of its container and has a definite volume due to the attraction of molecules and freedom of motion being in somewhat equal balance. the molecules move around each other. the freedom of motion is not small or great.
• gas : a state of matter with no definite shape or volume since the freedom of motion overcomes the attraction of molecules. gas molecules are free to anywhere in any way in their container. thus, this state of matter has the greatest freedom of motion.
• state of matter : solid, liquid, gas
• phase change : a change from one state (solid or liquid or gas) to another without a change in chemical composition
• energy : the ability to do work, , but we also think of it as that thing that enables anything to move
• temperature : a measure of the average energy of motion of the particles of a substance. also, we think of this as hot or cold.
• titan : saturn's largest moon
• saturn : 6th planet from the sun
• methane : ch4, a colourless, odourless greenhouse gas that occurs both naturally and as a result of people's activities. it is produced by the decay of plants, animals, and waste, as well as other processes. titan has a lake of this substance that we are studying.
• water : h2o, a very important substance on earth
• carbon dioxide : co2, a colorless, odorless gas produced by burning carbon and organic compounds and by respiration.
• oxygen : o2, gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells.
• heat : the energy transferred between objects that are at different temperatures
• freezing : the change of state from a liquid to a solid
• melting : solid to liquid
• evaporation : the change of state from a liquid to a gas
• condensation : the change of state from a gas to a liquid
• sublimation : a change directly from the solid to the gaseous state without becoming liquid
• deposition : a change directly from the gaseous to the solid state without becoming liquid
• boiling point : the temperature at which a liquid changes to a gas
• atom : smallest particle of an element
• molecule : a group of atoms bonded together