The eye functions/light/energy

• Iris


  Controls light intake and changes the size of the pupil
• Retina


  A tissue in the eye
• Cornea


  A cover that protects the eyes from outside and radiation
• Lens


  Focuses to clearly see and focus on certain visuals
• Optic nerve


  Sends messages to the brain
• Pupil


  Changes shape depending on the lighting and alters so we can let light in
• Types of energy


  • Light
  • Kinetic
  • Gravitational
  • Potential
  • Magnetic
  • Elastic
  • Chemical
  • Thermal
  • Nuclear
  • Solar
  • Electrical
  • Radiant
  • Mechanical
• Dependent variable


  The variable that depends on the independent variable
• Independent variable


  The variable that is manipulated or changed to test its effects on the dependent variable
• Parts of the eye

  • Iris
  • Retina
  • Cornea
  • Lens
  • Optic nerve
  • Pupil
• what position is the x axis
• what position is the y axis