1) Which part of the ear is this? a) outer ear b) middle ear c) ear canal 2) Which part of the ear is this? a) outer ear b) middle ear c) ear canal 3) Which part of the ear is this? a) outer ear b) inner ear c) ear canal 4) What does " A" represent? a) Iris b) cornea c) pupil 5) What does " B" represent? a) iris b) retina c) cornea 6) What does " C" represent? a) optic nerve b) retina c) pupil 7) What does " D" represent? a) lens b) retina c) iris 8) What does " E" represent? a) retina b) optic nerve c) iris 9) What does " F" represent? a) iris b) lens c) retina 10) ................ is the colourful part of the eyes. a) iris b) pupil c) retina 11) What is the black hole in the middle of your eye? a) cornea b) pupil c) lens 12) Which part of an eye carries information to the brain? a) lens b) pupil c) optic nerves 13) What helps your eye to focus by changing the direction of the light? a) retina b) cornea c) iris 14) What is the white part of the eye ? a) optic nerve b) lens c) sclera 15) ……. is full of liquid and changes the vibrations of the sound waves . a) cochlea b) hammer c) anvi 16) What carries the electrical signals to the brain? a) stirrup b) The nerve c) ear canal 17) What works your ear with the sound waves falling on the outer part of your ear? a) cochlea b) the nerve c) pinna 18) There are three parts in your ear. a) true b) false 19) Tongue is the largest organ of the body a) true b) false 20) The human nose has two nostrils. a) true b) false 21) The two nostrils are divided by the septum. a) true b) false 22) Smell can’t affect our mood. a) true b) false 23) Hairs inside the nose trap dirt and dust to stop them going into our lungs when we breathe in. a) true b) false

SCIENCE-LESSON 20 -SENSITIVITY

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