# Properties of Matter

## Physical Properties of Matter

Our Physical science unit is off to a good start, the vocabulary below will be a good resource to use at home. The students will need to be able to understand these terms.

Physical Properties: Ways to describe matter

Matter: The amount of mass in a given volume

Mass: The amount of matter in an object

Volume: The amount of space an object takes up

Density: The amount of matter in a specific volume (More to the floor, Less to the surface)

Buoyancy: The force that opposes gravity (ability to float)

Relative Density: Sink or Float

Conductivity: The ability to allow energy transfer

Electrical Conductivity: The ability to transfer electrical energy

Thermal Conductivity: The ability to transfer thermal (heat) energy

Conductor: Ability to transfer energy

Insulator: Stops / Slows the transfer of energy

Solubility: The ability to dissolve in a liquid

Magnetism: Ability to attract to a magnet (NCIS - Nickel, Cobalt, Iron and Steel)

Texture: How an object feels (surface)

Physical State / State of Matter: Solid, liquid or gas

Solid: A state of matter that has a definite size/shape and a definite volume

Liquid: A state of matter that has a definite volume but takes the shape of the container

Gas: A state of matter that has no definite size/shape or volume it will take on the shape and volume of its container.

Boiling Point: The point that liquid water will turn into a gas (100 degrees Celsius)

Condensation Point: The point that a gas will cool down and condense back into a liquid (100 degrees Celsius)

Melting Point: The point that a solid will start to turn into a liquid (waters melting point is 0 degrees Celsius)

Freezing Point: The point that a liquid will start to turn into a solid (waters freezing point is 0 degrees Celsius)