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6. What is the centre of the earth called

  • Crust
  • Inner core
  • Mantle
  • Outer core

7. Covalent bonding is between

  • Plasics
  • Two non metals
  • Metal and non metal
  • Metals

8. During electrolysis the negative ions go to which electrode

  • Water
  • Negative elecrode
  • Positive electrode
  • Both electrodes

9. What is the substance called that is being broken down

  • Charged particles
  • Electrolyte
  • Ions
  • Proton

10. What is endothermic reactions

  • Creates chemicals
  • Take in energy from the surroundings
  • Makes energy
  • Transfer energy to the surroundings

11. The centre part of an atom is called the

  • Nucleus
  • Neutrons
  • Proton
  • Electron