Metals and non-metals Flashcards
Describe the solid state.
A solid has a fixed shape that cannot change easily except by force.
Describe the liquid state.
A liquid doesn’t have a fixed shape but takes on the shape of the container. Liquids can flow.
Describe the gaseous state.
A gas moves around freely and fills the space or closed container.
What gases is air made up of?
Mostly nitrogen and oxygen gas.
Define ‘matter’
Matter is everything that takes up space and has mass.
Define ‘mass’
Mass is the amount of material in an object.
Describe the change during melting
From solid to liquid.
Describe the change during evaporation
From liquid to gas.
Describe the change during condensation.
From gas to liquid.
Describe the change during solidifying
From liquid to solid
Define DUCTILE
Can be stretched into long wires
Define STRONG
Can withstand a large force
Define ELASTIC
Can be stretched and compressed and will return to its original shape
Define FLEXIBLE
Can be bent without breaking
Define TOUGH
Can change shape but doesn’t break
Define ABSORBENT
Soaks up liquids
Define an ELECTRICAL CONDUCTOR
A material that allows electricity to flow through it.
Define a THERMAL CONDUCTOR
A material that allows heat to flow through it.
Define MAGNETIC
Can be attracted by magnets
Define TRANSPARENT
Can be seen through.
Define HARD
Can not be scratched or marked easily.
Define BOUYANT
Can float on water
Describe the look and feel of a metal and a non-metal.
Metal: Shiny and hard.
Non-metal: Dull and brittle.
Describe the weight of a metal and a non-metal.
Metal: Heavy.
Non-metal: Light or heavy.
Describe the thermal and electrical conductivity of a metal and a non-metal.
Metal: Good conductor of heat and electricity.
Non-metal: Mostly insulators
Define VISCOSITY.
The degree to which a liquid resists flowing. Syrup is very viscous.
Give 3 examples of metals.
Iron, aluminium, gold, silver copper …
Give 3 examples of non-metals
Plastic, wood, wool, gases …
Explain the word DENSITY
Density is the mass per unit volume of a substance.
State 4 ways to prevent metals from rusting.
Coat the metal in plastic
Paint the metal
Coat the metal in another metal that doesn’t rust
Coat the metal with oil or grease.
