senses at work, unit 1, concept 2,lesson 1 #science_grade_4, #dr_science_safaa/#owls
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10 ماه پیش
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senses at work, unit 1,
senses at work, unit 1, concept 2,lesson 1 #science_grade_4, #dr_science_safaa
The senses play a crucial role in how we perceive and interact with the world around us. Let's explore the five main senses and how they work.
1. Sight (Vision):
Our eyes help us see the world. They detect light and send signals to our brain, which interprets the signals as images. The different parts of the eye, including the cornea, lens, and retina, work together to focus light onto the retina where specialized cells called rods and cones convert the light into electrical signals.
2. Hearing (Audition):
Our ears enable us to hear sounds. Sound waves enter the ear and cause the eardrum to vibrate. These vibrations are then transmitted through the middle ear by tiny bones called ossicles (hammer, anvil, and stirrup) to the cochlea in the inner ear. The cochlea converts the vibrations into electrical signals that are sent to the brain, allowing us to perceive sound.
3. Taste (Gustation):
The sense of taste allows us to detect different flavors. Taste buds, located on our tongues, contain specialized cells that can distinguish between sweet, sour, salty, bitter, and umami (savory) tastes. When we eat or drink, molecules from the food or drink stimulate these taste buds, and the signals are transmitted to the brain, where they are interpreted as specific tastes.
4. Smell (Olfaction):
Our sense of smell helps us detect and identify different scents. When we inhale, tiny molecules from the things around us enter our nose and bind to olfactory receptors high up in the nasal cavity. These receptors send signals to the brain's olfactory bulb, which interprets the signals as specific smells. Our sense of smell is closely linked to our sense of taste, and together they contribute to our perception of flavor.
5. Touch (Somatosensation):
The sense of touch allows us to feel physical sensations. Our skin is covered in sensory receptors that respond to various stimuli such as pressure, temperature, and pain. These receptors send signals to the brain, which interprets them as different sensations like warmth, cold, pressure, and texture.
By using our senses, we can gather information about the world, navigate our environment, and interact with others.
#science_grade_4_2024,#science_gade_4_المنهج_الجديد,#science_grade_4_first_term_lesson1 #junior_4_science,#4th_grade_science
ساينس_رابعة_ابتدائى_ترم_اول#
قناة دكتور ساينس صفاء لشرح الساينس لطلبة المدارس التجريبية و اللغات لمختلف المراحل التعليمية و حل امتحانات كتاب المعاصر ساينس و نماذج امتحانات المعاصر ساينس للتقييم الذاتى
تابعونا على اليوتيوب :.
@dr.sciencesafaa
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تابعونا على جروب التليجرام الخاص بالقناة:
https://t.me/Dr_science_safaa
تابعونا على جروب التليجرام للصف الرابع
https://t.me/drgrade4
The senses play a crucial role in how we perceive and interact with the world around us. Let's explore the five main senses and how they work.
1. Sight (Vision):
Our eyes help us see the world. They detect light and send signals to our brain, which interprets the signals as images. The different parts of the eye, including the cornea, lens, and retina, work together to focus light onto the retina where specialized cells called rods and cones convert the light into electrical signals.
2. Hearing (Audition):
Our ears enable us to hear sounds. Sound waves enter the ear and cause the eardrum to vibrate. These vibrations are then transmitted through the middle ear by tiny bones called ossicles (hammer, anvil, and stirrup) to the cochlea in the inner ear. The cochlea converts the vibrations into electrical signals that are sent to the brain, allowing us to perceive sound.
3. Taste (Gustation):
The sense of taste allows us to detect different flavors. Taste buds, located on our tongues, contain specialized cells that can distinguish between sweet, sour, salty, bitter, and umami (savory) tastes. When we eat or drink, molecules from the food or drink stimulate these taste buds, and the signals are transmitted to the brain, where they are interpreted as specific tastes.
4. Smell (Olfaction):
Our sense of smell helps us detect and identify different scents. When we inhale, tiny molecules from the things around us enter our nose and bind to olfactory receptors high up in the nasal cavity. These receptors send signals to the brain's olfactory bulb, which interprets the signals as specific smells. Our sense of smell is closely linked to our sense of taste, and together they contribute to our perception of flavor.
5. Touch (Somatosensation):
The sense of touch allows us to feel physical sensations. Our skin is covered in sensory receptors that respond to various stimuli such as pressure, temperature, and pain. These receptors send signals to the brain, which interprets them as different sensations like warmth, cold, pressure, and texture.
By using our senses, we can gather information about the world, navigate our environment, and interact with others.
#science_grade_4_2024,#science_gade_4_المنهج_الجديد,#science_grade_4_first_term_lesson1 #junior_4_science,#4th_grade_science
ساينس_رابعة_ابتدائى_ترم_اول#
قناة دكتور ساينس صفاء لشرح الساينس لطلبة المدارس التجريبية و اللغات لمختلف المراحل التعليمية و حل امتحانات كتاب المعاصر ساينس و نماذج امتحانات المعاصر ساينس للتقييم الذاتى
تابعونا على اليوتيوب :.
@dr.sciencesafaa
تابعونا على صفحة الفيس بوك:
https://www.facebook.com/profile.php?...
تابعونا على جروب التليجرام الخاص بالقناة:
https://t.me/Dr_science_safaa
تابعونا على جروب التليجرام للصف الرابع
https://t.me/drgrade4
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