Changing States of Matter

Which of the following tools is used to measure temperature?

• Stopwatch

• Hot plate

• Hand lens

• Thermometer

Why is there water droplets on the outside of your drinking glass?

• Water from the inside the cup has traveled through the glass

• The water has been heated to form a gas

• Water vapor in the air has cooled to become liquid water on the outside of the glass

• The water inside the glass has frozen

What would happen to a crayon placed outside on a hot, sunny day?

• Paper wrapper would melt

• The wax would melt

• It would change color

• It would change into a solid

When heat is added to an ice cube, it changes from--

• a liquid to a solid

• a liquid to a gas

• a solid to a liquid

• a gas to a liquid

When heat is added to liquid water, it--

• melts

• stays a liquid

• becomes a gas

• becomes a solid

Water in the form of a gas is called

• thermometer

• ice

• heating

• water vapor

Heat can be added to matter by placing it--

• in a dark closet

• in a refrigerator

• outiside on a sunny day

• in a cup of ice

A student took ice cream outside on a summer day. The heat would cause what kind of change?

• a liquid becoming a gas

• A liquid becoming a solid

• A gas becoming a liquid

• A solid becoming a liquid

When an ice cube is placed on the sidewalk on a hot day, what is the series of changes that occur to its physical state?

• Gas-->Solid-->Liquid

• Solid->Gas->Liquid

• Solid->Liquid->Gas

• Liquid->Gas->Solid

Sometimes a burning candle will have wax dripping down the side. This happens because the heat of the flame –

• turns the wax of the candle to a liquid

• causes water to collect on the candle

• creates tiny air currents around the candle

• uses some of the gases in the air