Matter Matters

What are the three common states of matter?

• solid, gas, plasma

• solid, plasma, liquid

• solid, liquid, plasma

• solid, liquid, gas

Tick the physical property of matter.

• Taste

• Volume

• Color

• Density

How is density of matter calculated?

• Density = Weight / Volume

• Density = Volume / Mass

• Density = Mass * Volume

• Density = Mass / Volume

What happens to matter when it changes from a solid to a liquid?

• The particles shrink in size

• The particles stop moving completely

• The particles gain enough energy to overcome the forces holding them in a fixed position, allowing them to move more freely.

• The particles become more rigid

What is the definition of matter?

• Anything that has mass and takes up space

• A substance that is liquid, solid, or gas

• Anything that is pure

• Anything that you can see or hold

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous MIxture

Dry ice on the kitchen counter has disappeared without a trace. Dry ice skips the liquid phase. It never "melts" instead turns directly into a gas. This is an example of what change of physical state?

• Sublimation

• Melting

• Condensation

• Deposition

If someone sprays perfume in front of the class, why is it that we can smell it even from the back?

• because gas has NO definite shape but takes the container's shape

• because gas has low density

• because gas has NO definite volume

• because gas can diffuse easily

1. Write the physical state of matter that shows the property given below :

   1. 1. Rigid and compressible.

   2. 2. Most compressible form of matter.

   3. 3. Have definite volume but fixed shape.

   4. 4. Has largest inter particle space but weakest form of attraction.

1. Name the process –

   1. 1. A solid that melts at 0⁰C

   2. 2. A substance that exists as a solid at ordinary temperature but changes to vapour on heating