review matter

A container with ice in it is left in a warm room. After three hours, what has most likely happened to the ice? The ice has–

• increased in size.
• turned to a gas.
• melted into a liquid.
• gotten colder.

A student heats chocolate chips. What properties would you expect to see change?

• Shape and taste 
• Taste and state of matter
• State of matter and shape
• Size and mass

When water is frozen, its state of matter changes from a -

• solid to a liquid
• liquid to a solid
• gas to a liquid
• liquid to a gas

A glass of ice cold water forms drops of water on the outside. This happens when water vapor in the air condenses because -

• the ice melts
• gravity pulls air down
• the glass is sitting still
• water vapor in the air cools to form liquid

Students want to investigate how the amount of water affects the way heat can change liquid water into a gas. Besides a thermometer, what other items will their investigation require?

• Balance, graduated cylinder, goggles
• Hot plate, stop watch, containers of water
• Containers of water, hot plate, goggles
• Stop watch, goggles, containers of water

Which of the following will cause an ice cube to melt?

• Covering the ice cube with aluminum foil
• Adding thermal energy to the ice cube
• Putting the ice cube in a dark place
• Returning the ice cube to the freezer

A lake that is frozen in the winter will melt during the spring. This happens because, in the spring -

• there are usually more days with rain
• many plants begin to grow new leaves and flowers
• he days are warmer and the sun shines longer
• humans get to spend more time outside

A crayon is left outside on a sunny, summer day. All of the following will likely be observed EXCEPT –

• change of state
• change from liquid to gas
• some melting
• change in shape

On what kind of day will ice most likely melt quickly?

• A hot, sunny day
• A cold, snowy day
• A warm, rainy day
• A cool, clear day