Science(Fireworks Topic)🧬🧪

• Cornea -Bends light into eyes
• Iris -Its the coloured bit of the eye and it controls the size of your pupil
• Pupil -Controls light entering eyes
• Lens -Focuses light on retina
• Retina -A row of light sensitive cells that turn light into electrical impulses
• Optical Nerves -Carries electrical impulses from eyes to brain
• Having 2 eyes are better then just having one because when we look at something both our eyes see something slightly different so our brains put the 2 pictures together allowing us to see 3 dimensions.
• Having 2 eyes enables us to judge distance
• Light is a form of energy and travels as a wave
• Light always travels in a straight line
• Shadows are formed when an object prevents light from passing through it
• The angle of incidence is the angle measured between the incident ray and normal
• The angle of reflection is the angle measured between the reflected ray and normal
• For a flat mirror the angle of incidence equals to the angle of reflection
• When light passes from air to into glass its direction changes
• The angle of refraction is smaller than the angle of incidence
• Lenses can be described as either a convex or concave lens
• When light passes through a convex lens the rays converge to a point called the focus point
• When light passes through a concave lens the light rays diverge (spread out)