Exploring States and Changes of Matter

What are the three main states of matter?

• Solid, Liquid, Gas

• Solid, Liquid, Plasma

• Liquid, Gas, Plasma

• Solid, Gas, Plasma

Which state of matter has a definite shape and volume?

• Gas

• Liquid

• Solid

• Plasma

What is the process called when a solid changes directly into a gas?

• Melting

• Condensation

• Sublimation

• Evaporation

Which of the following is an example of a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

What is the term for the amount of mass per unit volume of a substance?

• Buoyancy

• Density

• Volume

• Mass

If an object is less dense than the liquid it is placed in, what will happen?

• It will sink

• It will float

• It will dissolve

• It will evaporate

Which state of matter has particles that are tightly packed and only vibrate in place?

• Gas

• Liquid

• Solid

• Plasma

What happens to the particles of a substance as it changes from a liquid to a gas?

• They move closer together

• They move further apart

• They stop moving

• They become charged

Which of the following is NOT a state of matter?

• Solid

• Liquid

• Gas

• Energy

What is the process of a gas changing into a liquid called?

• Evaporation

• Condensation

• Freezing

• Sublimation