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علوم الصف الخامس المنهج الجديد لغات
:039uw8: Unit 1 : Energy Lesson 1 : light Light : A form of energy that affects eye causing the sense of seeing (vision ) Difference between light energy and other forms of energy : Lightenergy differ than other kinds of energy Because : It is visible energy . Sources of light : 1. The Sun : The main source of light on earth's surface 2. The moon : Moon's light is a reflection of sunlight that falls on its surface . Visible Spectrum : Light energy which can be seen by the eye Travel of light v Light travels in straight lines . Example : The Straight line : is The path 1.Which is taken by light rays coming from the car torch . 2.Which is taken by beam of sun rays coming from the sun and passes through a narrow hole of a window or a dark room Activity prove that : Light travels in straight lines Tools : lighted candle – straight cylinder of length 50 cm Steps : 1.Fix a lighted candle vertically 2.Put one of the 2 ends of the straight cylinder in front of the candle flame 3.Look at the flame of the candle . Observation : You can see the flame 4.Bend the cylinder (not straight ) 5.Try to look at the candle flame through the bent cylinder Observation : You can't see the flame. Conclusion : Light travels in straight lines Activity prove that : Light travels in straight lines Tools :lighted candle – 3 cardboard screens Steps : 1.Bring 3 pieces of cardboard , each containing a hole . 2.Put them in a row in front of a lighted candle . Where all holes and the flame are on one straight line . 3.Look to the candle flame through the hole of the last pieces of cardboard . Observation : You can see the flame 4.Move any of the pieces of the cardboard to right or left The 3 pieces are not on one straight line . 5.Try to see the candle flame through the hole of the last pieces of cardboard . Observation : You can't see the flame . Conclusion : Light travels in straight lines Phenomena happen due to traveling the light in straight lines : 1.Formation of images through narrow holes 2.Formation of shadows Formation of images through narrow holes : When light travels through narrow holes : An inverted image is formed is formed It leads to : Designing of photographic camera . Activity proves that : Light travels through narrow holes forming An inverted image : Steps : 1.Bring a cardboard ( metallic ) box opened from on side . 2.Cover the open side by a semi-transparent paper (white balloon ) 3.Make a small hole on the opposite side of the box. In a dark room : 4.Move a lighted candle in front of the small hole of the cardboard box Until an inverted is formed . Observation : An inverted image for the candle is formed Conclusion : Light travels through narrow holes in straight lines forming An inverted image . v This activity is the base of idea of the camera v This box is called pin-hole camera |
علوم الصف الخامس المنهج الجديد لغات
Unit 1 : Energy Lesson 1 : light Light : A form of energy that affects eye causing the sense of seeing (vision ) Difference between light energy and other forms of energy : Lightenergy differ than other kinds of energy Because : It is visible energy . Sources of light : 1. The Sun : The main source of light on earth's surface 2. The moon : Moon's light is a reflection of sunlight that falls on its surface . Visible Spectrum : Light energy which can be seen by the eye Travel of light v Light travels in straight lines . Example : The Straight line : is The path 1.Which is taken by light rays coming from the car torch . 2.Which is taken by beam of sun rays coming from the sun and passes through a narrow hole of a window or a dark room Activity prove that : Light travels in straight lines Tools : lighted candle – straight cylinder of length 50 cm Steps : 1.Fix a lighted candle vertically 2.Put one of the 2 ends of the straight cylinder in front of the candle flame 3.Look at the flame of the candle . Observation : You can see the flame 4.Bend the cylinder (not straight ) 5.Try to look at the candle flame through the bent cylinder Observation : You can't see the flame. Conclusion : Light travels in straight lines Activity prove that : Light travels in straight lines Tools :lighted candle – 3 cardboard screens Steps : 1.Bring 3 pieces of cardboard , each containing a hole . 2.Put them in a row in front of a lighted candle . Where all holes and the flame are on one straight line . 3.Look to the candle flame through the hole of the last pieces of cardboard . Observation : You can see the flame 4.Move any of the pieces of the cardboard to right or left The 3 pieces are not on one straight line . 5.Try to see the candle flame through the hole of the last pieces of cardboard . Observation : You can't see the flame . Conclusion : Light travels in straight lines Phenomena happen due to traveling the light in straight lines : 1.Formation of images through narrow holes 2.Formation of shadows Formation of images through narrow holes : When light travels through narrow holes : An inverted image is formed is formed It leads to : Designing of photographic camera . Activity proves that : Light travels through narrow holes forming An inverted image : Steps : 1.Bring a cardboard ( metallic ) box opened from on side . 2.Cover the open side by a semi-transparent paper (white balloon ) 3.Make a small hole on the opposite side of the box. In a dark room : 4.Move a lighted candle in front of the small hole of the cardboard box Until an inverted is formed . Observation : An inverted image for the candle is formed Conclusion : Light travels through narrow holes in straight lines forming An inverted image . v This activity is the base of idea of the camera v This box is called pin-hole camera |
الله ينور ............................ شئ جميل
وكل عام وانتم بخير |
اين بقية الدرس
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شكرا على السؤال
اتمنى لكم دوام الصحة |
فين الباقى
ده درس واحد ومش كامل كمان ممكن تكملوا باقى المنهج |
:av4056bb7jp3::av4056bb7jp3::av4056bb7jp3::av4056b b7jp3:مشكور كتير ممكن تعمل دروس التيرم التانى بنفس الطريقة
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شكرا للجهد الرائع لمادة العلوم لغاتscience
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مشكور علي المجهود الرائع
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شكرا ولكن اطلب من حضرتك باقى الدروس لو سمحت
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جزاك الله خيرا
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شكرا جزيلا
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شكرا جزيلا
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جزاك الله خيرا
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