Cette leçon contient 23 diapositives, avec diapositives de texte.
La durée de la leçon est: 60 min
Éléments de cette leçon
The sense organs
Science 3
Slide 1 - Diapositive
how many sense organs do we have?
Slide 2 - Diapositive
Slide 3 - Diapositive
The sense organs
Lesson 1: THE EYES
Slide 4 - Diapositive
WHAT ENABLE US TO SEE THINGS AROUND US?
Slide 5 - Diapositive
Our eyes are the sense organs for sight. They are very important because they enable us to see. They help you identify the characteristics of people, things and places around you.
Slide 6 - Diapositive
Objectives:
At the end of the lesson, the pupils should be able to;
Identify the parts of the eyes
Slide 7 - Diapositive
Parts of the eyes
Our eyes have both external and internal parts that work together even as each part has its specific functions.
Slide 8 - Diapositive
External parts
the external part of the eyes include the eyelids, eyelashes, sclera, cornea, pupil and iris.
Slide 9 - Diapositive
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Slide 11 - Diapositive
Eyelids
the eyelids serves to protect the front part of the eye.
Slide 12 - Diapositive
Eyelashes
Protects the eyes by keeping dirt and and other stuff from entering your eyes.
Slide 13 - Diapositive
Sclera
The sclera is the white part of your eyes. It serves as the protective coating of the eyes.
Sclera
Slide 14 - Diapositive
Cornea
the cornea serves as the transparent covering of the eyes. it is the clear portion of your eyes that allows light to enter the eyes.
Slide 15 - Diapositive
Pupil
The pupil serves as the opening where light enters. It is the small black part in the center of the eyeball.
Slide 16 - Diapositive
Iris
the colored part of the eyes that surrounds the pupil. The muscles of the iris control how much light enters your eye.
The color of the iris may range from black to gray, brown, blue or green.
Slide 17 - Diapositive
Internal parts of the eyes
the internal parts include the lens, retina, and optic nerve.
Slide 18 - Diapositive
Lens
the lens focuses light and projects the image on the retina.
Slide 19 - Diapositive
Retina
is the part found at the back of the eye. The retina is where the image that is seen is focused. The retina sends the signals to your brain through passageways called optic nerves.
Slide 20 - Diapositive
Optic nerve
The optic nerve sends messages to the brain. Your brain then interprets these signals and processes the image of the object seen.
La durée de la leçon est: 60 min
