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    give reason primary 6 solar eclipse

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    atwa
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    عضو فعال

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    تاريخ التسجيل : 22/04/2009
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    give reason primary 6 solar eclipse

    مُساهمة من طرف atwa في الخميس مارس 31, 2011 9:01 am

    Give reasons for each of the following :
    ** The type of solar eclipse differs according to the movement of the Moon in front of the Sun.
    Due to the difference in the part of the sun that the moon hides during its passage in front of the sun.
    ** The annular eclipse occurs when the Moon comes in an orbit higher to Earth
    Because the moon size appears smaller to that of the sun. So, the sun appears as a lighted ring.
    ** We shouldn’t look directly at the Sun with naked eye during the solar eclipse.
    Because during the solar eclipse the Sun keeps emitting harmful rays to the eye such as ultraviolet rays (UV) and infrared rays.
    *No annular lunar eclipse is formed like the annular solar eclipse.
    Because the earth has a greater size than the moon so it blocks all sun light .

    * The Moon blocks sunlight from reaching the Earth when its comes between the Sun and the Earth.
    Because the moon is a dark body that doesn’t allow the sunlight to pass through.
    * The distance between the Moon and the Earth varies during the moon’s rotation around the Earth.
    Because the moon rotates around the Earth in an oval shape orbit.
    * The total solar eclipse is formed when the Moon rotates nearer to the Earth.
    Because when the moon rotates nearer to the Earth its size appears equal to the sun. so, it hides all the sunlight.
    * The total solar eclipse appears at umbra.
    Because the umbra is the dark inner shadow of the moon in which no sunlight appears.
    * The partial solar eclipse appears at penumbra.
    Because the penumbra is the faint outer shadow of the moon in which apart of the sun light is hidden.
    * Although the weak glowing of the Sun during the eclipse we mustn’t focus looking to it.
    Because the Sun keeps emitting its harmful rays such as ultraviolet and infrared rays

    * Scientists can mention the times and the locations where solar eclipse occurs.
    Because it is possible to predict the times of the rotation of the moon and the Earth in their orbits around the Sun.

    * We can’t see the Sun completely during the total solar eclipse.
    Because the moon hides all the sunlight as its size seems nearly equal to that of the Sun.

    .
    What happens when:
    1. An object is put between a light source and a screen.
    . shadow on the screen formed .
    2. The Moon comes between the Sun and Earth in one straight line.
    The solar eclipse occurs.
    3. The solar eclipse is watched from the umbra region
    It appears as total solar eclipse..
    4. The solar eclipse is watched from the penumbra region.
    it appears as a partial solar eclipse.
    5. The solar eclipse is watched from the antumbra region.
    It appears as an annular solar eclipse.
    6. The size of moon appears smaller than the Sun during the solar eclipse.
    The solar eclipse appears as annular solar eclipse.

    7-The Moon hide a part of the sun from the Earth’s surface.
    A partial solar eclipse occurs.

    8-You use a special glasses during observing the solar eclipse.
    We can watch the solar eclipse safely.

    You focus looking to the sun directly during the solar eclipse.
    The eye retina will be harmed and blindness may occurs.

    What is meant by each of the following:
    1. The solar eclipse. : It is the astronomical phenomenon which occurs when the Earth, the moon and the sun are nearly in one straight line with the moon in the middle casting its shadow on the Earth hiding the sunlight on this part of Earth.

    * Cone umbra. : It is the dark inner shadow in which the total solar eclipse appears.

    * The penumbra. : It is the faint outer shadow in which the partial solar eclipse appears.

    * Total solar eclipse. : It is the solar eclipse in which we can’t see the sun completely and it is formed in the shadow area (umbra) of the moon.

    * Partial solar eclipse: It is the solar eclipse in which we can see a part of the sun and it is formed in the semi-shadow area (penumbra) of the moon.
    *Annular solar eclipse. : It is the solar eclipse in which the sun appears as a lighting ring and it is formed when the moon is in a higher orbit from the Earth.

      الوقت/التاريخ الآن هو الأربعاء ديسمبر 13, 2017 3:42 am