The Eye Objectives: Know about eye structure and function Understand how eyes work.

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Presentation transcript:

The Eye Objectives: Know about eye structure and function Understand how eyes work

Starter: Pupil reflex Cover your eyes for 30 seconds Open them and look into your partners eyes and watch what happens Can you explain what is happening and why?

Starter 2: Finding your blind spot Find your blind spot by using the spot and cross on the card Hold the card 60cm away from your face, with dot on the right Close your LEFT eye and stare at the cross Move the card slowly towards your face What happens?

The dot should disappear. Why? The image falls on a blind spot at the back of the eye on your retina There are no light sensitive cells here because this is the place on the retina where the nerves leave the eye to the brain

Main: Senses biovideo As you watch the video, answer the questions about our senses and also the specific questions about sight

Eye structure Cut and stick or label parts of eye Use diagram from text to help you List the functions of each part (see co- ordinated science page 135) Answer questions 1-3 page 136/7

Eye experiments Try out 2 more eye experiments if time allows Look at the eye model and find each part

Plenary: how do we see colours? 3 types of cone cells on our retina, sensitive to different wavelengths of light

Homework Imagine what it would be like without ONE of your senses. Write a story or a poem about it. OR research ONE animal with a specially developed sense.