Name: Julieta Aguilar Date: 3/21/23Student Exploration: Phase ChangesVocabulary:altitude, boil, boiling point, freeze, freezing point, gas, liquid, melt, melting point,phase, solidPrior Knowledge Questions (Do these BEFORE using the Gizmo.)1.A family from Minnesota turns off the heatandflies to Florida for a winter holiday. Whentheycome home, all of their water pipes have burst. What do you think happened?The water pipes froze, meaning the water expanded and the pipes burst.2.Spaghetti takes about 9 minutes to cook at sea level, but about 14 minutes in themountains. Why do you think this is so?As attitude increasesand atmosphere pressure decrease, the boiling point of waterdecreases.Gizmo Warm-upInthePhase ChangesGizmo, selectMicroviewandset theIcevolumeto 50 cm3. Notice the nitrogen {%), oxygen {$),and water {<') molecules.Click Flay {►) and observe water molecules in the solid(ice),liquid(water), and gas {air) phases.1.In which phase(s) are the molecules held rigidlytogether? Solid - Ice2.In which phasefs) do the molecules move freely?Gas3.In which phase(s) are the molecules held in a defined shape? Solid - Ice4,In which phase(s) do the molecules take the shape of their container? Liquid and Gas■' 2019 I >i- 1i-.ilUHIM'■:•II-.rr -,rl vr‘11Preview Mode
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