Matter And Energy Unit Review: Question Preview (ID: 21681)


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After a rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?
a) precipitation b) transpiration c) evaporation d) condensation
A jeweler melts gold to make jewelry. As the gold melts, the mass
a) increases. b) decreases. c) is destroyed. d) stays the same.
Which property of sugar remains after sugar is dissolved in water?
a) color b) taste c) shape d) texture
In which way are evaporation and condensation similar?
a) Both cause decreases in air temperature b) Both cause increases in air temperature. c) Both are caused by the warming of the atmosphere. d) Both are caused by changes in heat energy.
Over time, iron becomes rust when it combines with water and oxygen. Which type of change must occur for rust to form?
a) chemical b) mechanical c) nuclear d) physical
Which best describes the change that occurs when heat is added to ice cream?
a) A chemical change occurs as the ice cream becomes whiter. b) A physical change occurs as the ice cream becomes sweeter. c) A physical change occurs as the ice cream melts into a liquid. d) A chemical change occurs as the ice cream freezes into a liquid.
Which statement best describes why baking a cake is an example of a chemical change?
a) The process takes place in a kitchen. b) The process requires heat energy. c) . The process cannot be reversed. d) The process can be repeated.
Which is an example of a different substance being formed?
a) glass breaking b) metal melting c) water freezing d) wood burning
If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
a) 2 grams b) 5 grams c) 10 grams d) 15 grams
Which best explains why a full glass bottle of water should not be stored in a freezer?
a) The temperature of the freezer will make the water too cold. b) Water expands when it freezes, which could break the bottle. c) . Water contracts when it freezes, which could break the bottle. d) The temperature of the freezer will not make the water cold enough.
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
a) convection b) evaporation c) radiation d) conduction
People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?
a) The heat from the fire travels through the ground and heats the ground around the people. b) The heat from the fire is conducted through air molecules to the people. c) The heat from the fire rises in the air and then settles around the people. d) The heat from the fire radiates from the fire to the people
Which is most responsible for the uneven heating of the air in the atmosphere?
a) radiation b) convection c) conduction d) condensation
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?
a) combustion b) convection c) radiation d) conduction
What must occur before clouds can form?
a) Water vapor must get warmer. b) Water vapor must lose heat energy. c) Precipitation must begin to fall and run off. d) Transpiration must add water vapor to the atmosphere.
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