Understanding the Three States of Matter

Which of the following is NOT a state of matter?

• Solid

• Liquid

• Gas

• Atoms

What property of solids is demonstrated by a cube, cuboid, and sphere?

• Fixed volume

• Fluidity

• Fixed shape

• Compressibility

How can the volume of an irregularly shaped solid be measured?

• By compressing it

• Archimedes' liquid displacement technique

• Using a scale

• Using a ruler

Why are most solids difficult to compress?

• They have a fixed shape

• They have a fixed volume

• Their particles are tightly packed

• They are fluids

What is the term used for substances that can flow?

• Gases

• Solids

• Fluids

• Liquids

What happens to the shape of a liquid when it is poured into different containers?

• It solidifies

• It remains the same

• It changes to fit the container

• It evaporates

Why are liquids considered almost incompressible?

• They have a fixed volume

• Their particles are tightly packed

• They are fluids

• They have a fixed shape

What property of gases allows them to fill their container completely?

• Fluidity

• Fixed shape

• Fixed volume

• High compressibility

Why are gases stored under high pressure?

• To keep them from escaping

• To reduce their volume

• To increase their volume

• To make them solid

What is the term used for both liquids and gases?

• Solids

• Incompressibles

• Fluids

• Compressibles