States of Matter Test Review

Worksheet by Melissa Shipley
States of Matter Test Review worksheet preview image
Subjects
Science
Grades
8
Language
ENG
Assignments
9 classrooms used this worksheet

Match the following phase chages Melting the change from solid to liquid Freezing the change from liquid to solid Boiling the change from liquid to gas Condensation the change from gas to liquid Sublimation the change from solid to gas Deposition the change from gas to solid Label the diagram using the words from above melting freezing boiling or evaporation or vaporization condensation sublimation deposition The graph was drawn from data collected as a substance was heated at a constant rate. Use the graph to answer the following questions. At point A, the beginning of observations, the substance exists in a solid state. Material in this phase has definite volume and definite shape. With each passing minute energy is added to the substance. This causes the molecules of the substance to vibrate more rapidly which we detect by a steady rise in temperature of the substance. At point B, the temperature of the substance is 70 C. The solid begins to melt. At point C, the substance is completely melted or in a liquid state. Material in this state has definite volume but indefinite shape. The energy put to the substance between minutes 5 and 9 was used to convert the substance from a solid to a liquid. Between 9 and 13 minutes, the added energy increases the temperature of the substance. During the points D to E, the liquid is boiling. By point E, the substance is completely a gas or vapor. Material in this phase has indefinite volume and indefinite shape. Beyond point E, the substance is still in the gas phase but the molecules are moving rapidly as indicated by the rise in temperature. Type your answers into the blank after each question.Which substance has the highest boiling point? _What is that boiling point of this substance? _ What is the melting point for Cl2? _What state is Cl2 in at 50 ˚C ? _What is NaCl’s boiling point? _What state is water in at -100˚C? _Approximately how long did Gold melt for?_Which substance exist as a gas at 50˚C ? _ Match the images below with the correct state of matter shown solid liquid gas

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