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Transcript
Unit 4: Physical Properties and Changes Review Vocabulary: Boiling – temperature where a liquid changes to a gas Buoyancy – tendency of an object to float or rise in a fluid Evaporating – phase change where a liquid becomes a gas Freezing – phase change where a liquid becomes a solid Gas – phase of matter that has no definite shape or volume Insulate – to prevent the passage of heat, sound, and electricity through an object Liquid – phase of matter that has definite volume but no definite shape Magnetic – having the properties of a magnet, an object that can attract iron Melting – phase change where a solid becomes a liquid Solid – phase of matter that has definite shape and volume Substance – matter; anything that has mass and takes up space Texture – the appearance and feel of a substance Content Vocabulary: Brittle – likely to break, snap, or crack when subjected to pressure Conductivity – a property that describes if heat or electrical charges pass through the material easily Density – the amount of matter in a given space or volume, a relationship between mass and volume Displacement – a way to measure the volume of a solid by placing it in a known amount of liquid Ductility – a property that describes if the material has the ability to be pulled into thin wire without breaking Luster – the way the surface of a mineral reflects light; either metallic or non-metallic such as silky, dull, glassy, or resinous Malleability – a property that describes the ability of the material to be rolled or hammered into thin sheets Metal – an element that is typically a hard, shiny solid, is malleable, and is a good conductor of heat and electricity Metalloid – an element that shares some properties of metals and some of non-metals Non-metal – an element that is usually a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and is typically not shiny Overflow can – a can used for measuring the volume of an object (usually an irregular shaped one) by fluid displacement Physical Property – those characteristics that can be observed without changing the identity of the substance such as size, shape, luster, conductivity, malleability, and magnetic attraction Property – the characteristics or qualities of a substance; physical and chemical State of Matter – a phase is another name for a physical state of matter such as solid, liquid, or gas