Properties of Matter

Which of these factors cause water to evaporate the fastest??

• high temperatures
• high humidity
• slow winds
  
• slow runoff

One type of cold remedy is an effervescent tablet that breaks down in water. When the tablet is placed in water, it forms gas bubbles. In this example, the formation of a gas.

• is a physical property
• occurs when adding water to acid
• is sign of a chemical change
• occurs when the water boils

Which process in the water cycle is directly caused by the heat of the Sun?

• cloud formation
• evaporation
• runoff
• stream flow

The ice cubes in a freezer are melting. Which change most likely is causing the ice cubes to melt?

• a decrease in the mass of the ice cubes
• an increase in the mass of the ice cubes
• a decrease in the temperature inside the freezer
• an increase in the temperature inside the freezer

Which example shows a new substance being formed?

• a candle burning
• a shoelace being tied
• a pipe being cut in half
• a block of ice melting

I placed an ice cube on a plate in the sun. Ten minutes later, only water was on the plate. Which process caused the ice cube to change to water?

• condensation
• evaporation
• freezing
• melting

The same amount of ice is added to four different jars. In which jar will the ice melt the fastest?

• The jar with cold water.
• The jar with hot water.
• The jar with no water.
• The jar with warm water.

Appearance, texture, and density are classified as

• physical properties
• chemical properties
• magnetic properties
• thermal properties

Which of these is an example of water changing from water vapor to liquid?

• moisture forming on a mirror when you breathe on it
• sweat forming on your body when you exercise
• ice cubes melting when you put them in a warm liquid
• rivers drying up during a very hot summer

A large piece of ice is placed on the sidewalk on a warm day.  What will happen to the ice?

• It will not change at all.
• It will freeze to form liquid water.
• It will melt to form water vapor.
• It will melt to form liquid water.