Evaporation, When a liquid changes into a gas, like a puddle drying up., Condensation, When gas turns into a liquid, like water droplets on a cold glass., Melting, Melting: When a solid turns into a liquid, like ice turning into water., Freezing, When a liquid turns into a solid, like water turning into ice., Boiling, When a liquid gets so hot that it turns into gas, like water bubbling on the stove., Melting point, The temperature when something starts to melt, like when ice melts at 32°F., Boiling point, The temperature when something starts to boil, like water boiling at 212°F., Solid, Matter that has a shape and doesn’t flow, like a rock., Liquid, Matter that flows and takes the shape of its container, like water, Gas, Matter that spreads out and fills the space it’s in, like air., Molecular structure , The way tiny parts of matter (molecules) are arranged., Volume, The amount of space something takes up., Mass, How much matter is in something, like how heavy it is., Molecule, The smallest part of a substance that is still that substance, made of two or more atoms joined together..

Phase Changes

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