What may cause matter to change from one state to another?
What is different about the shapes of solids, liquids, and gases?
Francisco pours Coca-Cola into a cup, and it takes the shape of the cup. Is the Coca-Cola a solid, liquid, or gas? Why?
What determines how fast a substance’s particles move?
What is different about the particles in different states of matter?
What is temperature?
What causes changes in state?
In paragraph 2, what does "break away" most nearly mean?
What happens when you add energy to a substance?
What is the melting point?
What happens to the particles when a gas changes to a liquid?
CHALLENGE QUESTIONS
What kind of state change happens when water vapor forms rain?
Write an example of any state change. What is happening to the particles during that state change? What is happening to the temperature?