Space

• Which galaxy is our solar system?

  Milky Way Galaxy
• How many planets make up our solar system?

  Eight
• What do planets in our solar system orbit around?

  The planets orbit around the sun

  The sun is a star
• What type of force pulled together the cloud of dust and gas to form the sun?

  Gravitational force of attraction
• What is a nebula?

  A cloud of dust and gas
• What type of reactions take place at the start of a stars life cycle as dust and gas is drawn together?

  Fusion reactions
• What factor determines the type of lifecycle a star undergoes?

  The size of the star
• Which two phases do all stars the same or greater size that the Sun undergo?

  1. Protostar phase
  2. Main sequence phase
• what do Stars of a similar magnitude to the Sun become at the end of their lifecycle?

  A black dwarf
• What to things can stars much bigger than the sun become at the end of their lifecycle?

  Neutron star or black hole