Gravity - A force that pulls objects toward each other, like how Earth pulls us down., Mass - The amount of stuff (matter) in an object., Weight - How heavy something is because of gravity pulling on it., Matter - Anything that takes up space and has mass., Volume - The amount of space something takes up., Solid - A state of matter that has a fixed shape and volume., Liquid - A state of matter that has a fixed volume but can change shape to fit its container., Gas - A state of matter with no fixed shape or volume that spreads out to fill its container., Molecules - Tiny particles that make up everything around us., Quantitative Data - Information measured with numbers, like weight or height., Qualitative Data - Information described with words, like color or texture., Physical Changes - Changes to matter that don’t make a new substance, like melting or cutting., Chemical Changes - Changes that create a new substance, like burning or rusting., Dissolve - When a substance mixes completely into a liquid, like sugar in water., Thermal Conductivity - How well something lets heat pass through it., Insulation - Material that slows or stops heat or cold from passing through., Properties - Characteristics of a material, like its color, size, or texture., Density  - How much mass is in a certain amount of space (how heavy something feels for its size)., Law of Conservation - A rule that says matter can’t be created or destroyed, only changed.,

Matter Vocabulary

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