Elements and Oxides

• What is one way to check if a material is a conductor of electricity?

  Put it in a circuit
• How can you test if a material is magnetic?

  Use a magnetic material to see if it attracts
• What does a high melting point indicate about a material?

  It requires high temperature to melt
• How can you determine the melting point of a material?

  Use a thermometer and melt it with a bunsen burner
• What is one visual property that can indicate a material is metal?

  It could be shiny(has lustre)
• What does it mean if a metal oxidizes?

  A crust forms from oxygen reacting with metal
• How can you check if a metal oxidizes?

  Leave it outside and check if it changes appearance
• What are the possible properties of metals?

  • Conductor of electricity
  • Magnetic
  • High melting point
  • Shiny (sometimes)
  • Oxides
• What is one property that indicates a metal could be shiny or coloured grey and silver?

  It's Appearance
• How to check if a material can oxidize?

  See if it changes appearance
• What is an element?

  Substances made out of 1 type of atom
• Give an example of an element.

  Oxygen
• What gas is necessary for a candle to burn?

  Oxygen
• How are different elements characterized?

  Made out of different types of atoms
• What are some examples of elements and non-elements?

  Elements:

  • Silver
  • Gold
  • Copper
  • Aluminium
  • Iron

  
  

  Non-Elements:

  • Plastic
  • Glass
  • Bronze
  • Paper
• What is an electrical conductor?

  Allows electricity to pass through it
• What does it mean for a material to be malleable?

  Can be hammered into shape and retains it
• What is ductility in materials?

  Can be pulled into a thin wire
• What does lustre refer to in materials?

  Shiny
• What is the characteristic of a solid material?

  Retains its shape
• What properties must a material have to be considered a metal?

  • Electrical conductor
  • Malleable
  • Ductile
  • Lustrous
  • Solid
• What are the characteristics of metals?

  Shiny, good conductors, malleable, solid
• What are the characteristics of non-metals?

  Dull, poor conductors, brittle, solid or gaseous
• What is a displacement reaction?

  A more reactive metal replaces a less reactive one
• What occurs during oxidation?

  A substance combines with oxygen
• What does reactivity refer to?

  The tendency to undergo a chemical reaction
• What are elements made up of?

  Only one type of atom
• What is an atom?

  The smallest particle of an element
• What are molecules?

  Two to thousands of atoms joined together
• What defines a compound?

  Pure substances made of two or more elements
• What does a chemical formula show?

  The elements and their relative proportions in a compound
• What is a polymer?

  A molecule made of thousands of smaller molecules
• What are examples of polymers?

  Plastics and starch
• What does the periodic table show?

  All elements arranged in rows and columns
• What are physical properties?

  Features observed without changing the substance
• What are chemical properties?

  Features of how a substance reacts with others
• What are groups in the periodic table?

  Columns of the periodic table
• What are periods in the periodic table?

  Rows of the periodic table
• What are fossil fuels?

  Remains of dead organisms burned for fuel
• What is a carbon sink?

  Areas that absorb and store carbon