How much stuff is inside an object. We measure it with a scale in grams (g). Think: how heavy does it feel? - mass, How much space an object takes up. For today’s experiment; a cube, multiply side × side × side. - volume, How tightly the stuff is packed into the space; mass divided by volume. - density, An observable or measurable characteristic of an object. - property, (from latin “qualis” what kind) a description using your senses (words, not numbers). Examples: color, shine, rough or smooth, smell, hard or soft. - qualitative Property, (from latin “quantus” how much) measurable properties using numbers and units; like mass, in grams (g), volume in centimeters (cm³) - for solid objects, in milliliters (mL) - for liquids, in degrees Celsius °C - for temperature. - quantitative Property, (from Latin conducere, meaning “to lead together.”) Examples: a metal wire that allows electricity to pass through it; a cooking pan that allows heat to pass through it. - conductivity, An object or substance that has mass and volume. - matter, A property of a material that measures how well heat energy can pass through it. - thermal conductivity, The amount of a material that can dissolve in a liquid (solvent). - solubility, A property of a material that measures how well electrical energy can pass through it. - electrical conductivity, A material that conducts electricity, heat, or sound poorly. - insulator, A material’s surface that partially reflects light so it has a sheen, or gloss. - luster, A force that can attract or repel objects such as iron or steel. - magnetism, Tiny pieces of something. (small portions of matter) - particles, A property of a material that describes how well light or sound bounces off its surface. - reflectivity, A connection between two or more things. - relationship, Material that can dissolve. - soluble, Separated into smaller pieces. - subdivided, Any change in an investigation that can affect the result. - variable,

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