مركز الثقل - الفيزياء - الصف الثاني الثانوي - الفصل الأول

مركز تناظر شكل - الرياضيات - الصف الخامس الابتدائي - الفصل الأول

مركز تناظر شكل - الرياضيات - الصف الخامس الابتدائي - الفصل الأول

مركز الثقل - الفيزياء - الصف الثاني الثانوي - الفصل الأول

زلزال بؤرته الزلزالية بعيدة عن سطح الأرض (عميق) ومركزه الزلزالي قريب من المدينة مما يؤدي إلى حدوث تشققات في المنازل

زلزال بؤرته الزلزالية قريبة من سطح الأرض (ضحل) ومركزه الزلزالي بعيد عن سطح الأرض مما يؤدي إلى حدوث تشققات في المنازل

زلزال بؤرته الزلزالية بعيدة عن سطح الأرض (عميق) ومركزه الزلزالي بعيد عن المدينة مما يؤدي إلى حدوث تشققات في المنازل أقل في المنازل

زلزال بؤرته الزلزالية قريبة من سطح الأرض (ضحل) ومركزه الزلزالي قريبة من سطح الأرض مما يؤدي إلى حدوث تشقق ثم تدمير في المنازل

يتولد عن حدوث الزلزال في نقطة ما في الأرض نوعان من الموجات الزلزالية المرنة ، تنتشر في جميع الاتجاهات مبتعدة عن موقعه ، وتسمى النقطة التي تنطلق منها الحركة داخل...

Painting of Palestine mole rat (Nannospalax ehrenbergi):Found along the coasts of the Mediterranean Sea from Libya, through Egypt, Palestine, and Syria.Prefer to occupy areas with sandy or loamy soils and are found in a variety of habitats. They do not occur in desert areas. They spend most of...

Painting of Southern birch mice (Sicista subtilis).The Southern Birch Mouse (Sicista subtilis) is a species of birch mouse in the family Dipodidae. The most prominent characteristic of the Southern Birch Mouse is the dark stripe down the center of the back, which is bordered by two narrow bright...

Painting of Veiled chameleon (Chamaeleo calyptratus calyptratus), DISTRIBUTION Ch. c. calyptratus occurs in Yemen, centered around Ta’izz and Ibb. Ch. c. calcarifer inhabits Saudi Arabia and possibly Yemen. HABITAT The veiled chameleon primarily utilizes Acacia species in areas of heavy...

Vector generated image of Thermal Conductivity of Metals Apparatus:Demonstrates the varying speeds of heat conduction along metal strips. Consists of strips of four different metals, which are fixed opposite each other on a circular wooden frame, with the strips meeting at the center The outer...

Vector generated image of Soldering Pump:Also known as a 'solder sucker' or 'solderpault', the solder pump is a device for removing solder from a through-hole solder joint1. Depressing the spring-loaded plunger locks it in place. When the button is pressed, the plunger...

Vector generated image of Electric bench Centrifuge:A centrifuge is a piece of equipment, generally driven by an electric motor (but some older models are still spun with hand), that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis. The centrifuge works...

Painting of Central mudminnow (Umbra limi), DISTRIBUTION Centered around the Great Lakes region from northern Tennessee, United States, to southern Manitoba and Quebec, Canada. HABITAT Still or slow-moving water in ponds and ditches with a thick layer of mud on the bottom and...

Painting of Muskellunge (Esox masquinongy), DISTRIBUTION Northeastern North America; centered around Great Lakes region.HABITAT As with E. lucius, prefers slow-moving or still waters with abundant vegetation, but with slightly warmer water temperatures.FEEDING ECOLOGY AND DIET...

Painting of Human Brain:The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium .Most of the expansion comes from the cerebral cortex, a convoluted layer of neural tissue that covers the surface of the forebrain.

3D render image of Sun:The Sun is the star at the center of the Solar System. The Earth and other matter (including other planets, asteroids, meteoroids, comets, and dust) orbit the Sun, which by itself accounts for about 99.86% of the Solar System's mass.

Painting of Internal Organs Of Octopus:An octopus has eight arms, which trail behind it as it swims. Most octopuses have no internal or external skeleton, allowing them to squeeze through tight places. An octopus has a hard beak, with its mouth at the center point of the arms. Octopuses are...

Vector generated Image of Slide Wire Rheostat:Heavy oxidized resistance-wire wound on insulated metallic tube 2" in diameter and 12" long. Tube has an air center which effectively dissipates heat, so that the rheostat can carry more current. Carbon contact makes close selection of...

Pineal Gland:The pineal gland (also called the pineal body, epiphysis cerebri, epiphysis or the "third eye") is a small endocrine gland in the vertebrate brain. It produces melatonin, a hormone that affects the modulation of wake/sleep patterns and photoperiodic (seasonal) functions.It...

Painting of Teeth(premolars,canines,incisors,molars):We recognize four basic kinds of teeth in an individual's jaw, the incisors, canines, premolars, and molars.Incisors : these teeth are the first permanent teeth to erupt that replace a deciduous tooth. They have straight biting edges, a...

Painting of Limbic system:The limbic system (or Paleomammalian brain) is a set of brain structures including the hippocampus, amygdala, anterior thalamic nuclei, and limbic cortex, which support a variety of functions including emotion, behavior, long term memory, and olfaction.The limbic system...

Painting of Brain:The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a mammal with an equivalent body size