Which statement best describes a reversible change?, A change that creates a new substance, A change that can be undone to get the original substance back, A change that cannot be undone, A change that only happens when something is heated, Which statement best describes an irreversible change?, A change that can be undone to get the original substance back, A change that does not change the substance, A change that cannot be undone to get the original substance back, A change that happens only when something cools, Melting occurs when, heat is added., heat is taken away., Freezing occurs when, heat is added., heat is taken away., Removing heat from matter can cause materials to, melt., freeze., always evaporate., always condensate., Adding heat to matter can cause materials to, melt., stay the same., always evaporate., always condensate., _________ changes the state of matter., heat, sound, light, liquid, Is baking a cake reversible or irreversible?, The cake is irreversible because the ingredients used to make the cake can change back to their original state., The cake is irreversible because the ingredients used to make the cake will not change back to the original ingredients., The cake is reversible because the cake will melt into the parts used to make it., The cake is reversible because the cake will break apart into the parts used to make it., Adding heat energy to water, changes the water from a liquid to a solid., changes the water from a solid to a liquid., changes the water from a liquid to a gas., changes the water from a gas to a liquid., An ice cube melts after it is left in a cup. Which statement explains why this is a reversible change?, The water cannot be frozen again., The water will boil when it is heated., The water can be frozen into an ice cube., The water will weigh less than the ice cube did., During a science experiment, students observed that crayons melted when left in the sun. Which statement is true?, The changes to the crayons are reversible, even though they won't look like they did before., The changes to the crayons are irreversible, because they don't have the same shape as before., The changes to the crayons are irreversible, because you can still color with them., The crayons will remain a liquid once they melt., Which thing changes so that it is gone forever?, Ice melting into water, A pot becoming really hot., Paper burning, Water evaporating, Which of these represents a change that can be turned back into its original form?, fire wood burning to ash, heating water into steam, soaking nails in water until they rust, baking cookies, How is ice cream melting on a hot day similar to an egg being fried on a pan?, They both change to water vapor., They are both examples of matter changing because they are being heated., They are both reversible changes., They are both irreversible changes., Ice turns to liquid when it, freezes., melts., condenses., evaporates., Water turns to a gas, when heat energy is being added to the water., when heat energy is being taken away from the water., when it is frozen., It is not possible to turn water into a gas.

Changes in Matter Study Guide

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