cards that i not need but are useful

• As a wire increases in length, the resistance of the wire will also increase, this is because the longer the wire the longer distance for electrons to travel. This causes electrons to collide with more metal atoms (increase in resistance).
• The material of the wire will determine the flow of electrons. High resistance metals will decrease the current, low resistance metals will increases the current.
• Chemical change is when a new substance forms during a chemical reaction due to bonds breaking and/or forming. 
• Aluminium

  • Low density 
  • High thermal conductivity
  • Malleable
• Lead

  • High density 
  • Ductile 
  • Malleable
  • Poor electricity conductivity
• Copper

  • Thermal conductor 
  • Electricity conductor 
  • Malleable 
  • Ductile 
• Iron

  • Ductile 
  • Malleable
• • Gold
  • Lustrous 
  • Malleable 
  • Ductible
• Ductile means the a metal is able to be drawn out into a thin wire.