Chemistry Changes of States

If this ice cream scoop melts, what will change?

• color
• shape
• flavor

A puddle of water seemed to disappear. The heat caused the water to -

• melt
• condense
• evaporate
• cool

How do you change a solid chocolate bar to liquid chocolate?

• By freezing it
• heat energy
• light energy

Water vapor is forming a liquid on the outside of this glass because the vapor...

• warms the ice cubes inside the glass
• becomes warmer close to the glass
• pulls cooler liquid through the glass
• loses heat when it touches the glass

The steam coming off the pot of boiling water is an example of....

• a solid becoming a liquid
• a liquid becoming a solid
• a liquid becoming a gas
• a gas becoming a liquid

Which state of matter does ice start as (before you cool it)?

• liquid
• solid
• gas

1. water vapor 2. water condensation 3. ice crystalsThe process shown above is caused by....

• taking heat away
• adding heat
• producing heat
• increasing heat

After burning this candle all day, the candle has melted.  Which statement best describes the melted candle?

• It is a solid because it fills up the jar
• It is a liquid because it fills up the jar
• It is a solid because it takes the shape of the jar
• It is a liquid because it takes the shape of the jar

On a hot summer day chocolate candy can melt in your pocket.  How can you get the chocolate to return to a solid?

• add heat
• leave it in your pocket
• cool it in the refrigerator
• leave it outside

True or False: Matter can changes states by adding heat or cooling.

• True
• False