What is the fourth state of matter?

What does it mean to "expand" and what does it mean to "contract"?

Define the following terms:

a. Change of state

b. Physical change

c. Chemical change

Define each of the following:

a) evaporation

b) condensation

Define each of the following:

a) melting

b) freezing

Define each of the following:

a) Sublimation

b) Deposition

What term best describes each of the following?

a. A solid is heated to form a liquid

b. A gas cools to form a liquid

c. A solute mixes with a solute and seems to disappear

Identify TWO examples of physical change

Identify TWO examples of chemical change

Which type of change is easily reversible?

a) Physical change

b) Chemical change

Which type of change produces new substances?

a) Physical change

b) Chemical change

What is diffusion?

What is the opposite of:

a. Contraction

b. Freezing

c. Evaporation

What is the difference between a substance that is "compressible" and a substance that is "incompressible"?

Out of solids, liquids and gases, which states of matter are compressible? Which are incompressible?

Identify the following as solid, liquid or gas:

a. A substance has particles that are far apart and move around freely

b. A substance that has particles packed closely together but are free to move?

c. A substance with particles that are closely-packed together and can not move around

Describe the arrangement of particles in solids, liquids, and gases

With reference to the concept of diffusion, explain how you can smell a substance that is sprayed other side of the room (such as deodorant)