يتناول الفلاش المواد الموصلة للكهرباء و المواد العازلة (غير الموصلة للكهرباء) و يوضح مفهومهما بشكل مبسط من خلال عدّة أمثلة على كل منها

Distinguishing between the Electrical Insulators and the Electrical Conductors

Learn that magnets attract magnetic materials and that like poles repel and unlike poles attract.

Learn that extension is proportional to load, within the elastic limit of a material..

Understand that a magnetic field is a region of space where magnetic materials experience forces and learn that magnetic field line patterns.

اختلاف سرعة الصوت في المواد - العلوم - الصف الثاني المتوسط - الفصل الأول

اختلاف سرعة الصوت في المواد - العلوم - الصف الثاني المتوسط - الفصل الأول

تعريف تفاعل البلمرة التسلسلي وتوضيح خطواته وتعداد استخداماته

تعريف تفاعل البلمرة التسلسلي وتوضيح خطواته وتعداد استخداماته .

ما هي الإلكترونيات - الفيزياء - الصف الثالث الثانوي - الفصل الثاني

ما هي الإلكترونيات - الفيزياء - الصف الثالث الثانوي - الفصل الثاني

Distinguishing between the Electrical Insulators and the Electrical Conductors

Painting of a Deer mouse (Peromyscus maniculatus):It is a rodent native to North America.it is a carrier of emerging diseases such as hantaviruses and lyme disease.Deer mice are nocturnal creatures who spend the day time in areas such as trees or burrows where they have nests made of plant...

Painting of Cougar ( Puma concolor) :Mountain lions had the most extensive distribution of all American terrestrial mammals. They ranged from coast to coast in North America, and from southern Argentina and Chile to southeastern Alaska.Mountain lions use a wide variety of habitats including...

Painting of Domestic cow(Bos taurus):Like most domestic animals, Bos taurus (domestic cow) is currently found throughout much of the world. The wild ancestors of cows were native to northern Africa, Europe, and southern Asia.Cattle are born and raised on rangelands. Rangelands are unfertilized,...

Painting of Domestic cow(Bos taurus):Like most domestic animals, Bos taurus (domestic cow) is currently found throughout much of the world. The wild ancestors of cows were native to northern Africa, Europe, and southern Asia.Cattle are born and raised on rangelands. Rangelands are unfertilized,...

Painting of Donkey small(Burro)(Equus asinus):Present Throughout all of the North American deserts.Wild Burros feed on a variety of of plants, including grasses, Mormon Tea, Palo Verde and Plantain. Although some moisture is provided by these plant materials, Wild Burros must have drinking water...

Painting of House Mouse (Mus musculus):It is a small mammal and a rodent.House mice usually walk, run or stand on all fours, but when eating, fighting or orienting themselves, they stand only on the hind legs, supported by the tail. When running, the horizontal tail serves for balance; the end...

Painting of Marsh rabbit (Sylvilagus palustris), Range The mainland marsh rabbit, S. p. palustris, ranges from the Dismal Swamp, Virginia along the eastern coast to northern sections of Florida and through the Gulf Coast into Mobile Bay, Alabama.[3] It occupies coastal lowland...

Painting of Female Highland cattle (Bos taurus):is currently found throughout much of the world. The wild ancestors of cows were native to northern Africa, Europe, and southern Asia.Domestic cows are common and can be found throughout the world. Cattle are born and raised on rangelands....

Painting of Creek rat (Pelomys fallax):Distributed throughout southern Africa, in northern Mozambique, northwestern Zimbabwe, northern Botswana, Zambia, the Congo, Malawi, Tanzania, southwestern Uganda, and southern Kenya.Inhabit streams, rivers, riverbanks, and swamps, or anywhere there is...

Painting of Mouse-like hamster (Calomyscus bailwardi):Central Asia, including Iran, Caucasus, Turkmenistan, Afghanistan, and Pakistan.Found in a variety of habitats, from barren hillsides to wet forests,They build nests in rock crevices and other protected areas; nests are woven of grasses and...

Painting of Thick-spined porcupine (Hystrix crassispinis):North Borneo, especially Kalimantan.Forests and cultivated areas.Nocturnal; terrestrial.Fallen fruits and other vegetable material.Lower Risk/Near Threatened.

Painting of Eastern rock sengi (Elephantulus myurus):distributed across southern Africa from western Mozambique in the north to Orange Free State in the south, and in southern Zimbabwe, eastern Botswana, and throughout the Transvaal.live in the semi-arid, temperate savannas of southern Africa,...

Painting of Round-eared sengi (Macroscelides proboscideus):Live throughout Namibia, Cape Province in South Africa, and southern Botswana. It prefers desert, semidesert, and scrub forest.Individuals hide in sparse grass cover or bushes, and can quickly burrow into the sand for protection.are...