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

تقع الأراضي القطبية و التندرا في أقصى شمال الأرض وجنوبها ، في القطبين الشمالي والجنوبي ، تغطيهما الثلوج طيلة أيام السنة وتشكلان أشد الأنظمة البيئية قساوة على سطح...

سمكة نابليون أو شاحنة الموج هي سمكة من عائلة سمك الرأس , وهي من الأسماك الكبيرة التي تعيش بين الشعاب المرجانية في المحيط الهندي والمحيط الهادي , وتوجد أيضًا في...

مراحل نمو الضفدع : البويضات المخصبة ثم طور أبي ذنيبة ثم الضفدع اليافع ثم الضفدع البالغ

مراحل نمو الضفدع : البويضات المخصبة ثم طور أبي ذنيبة ثم الضفدع اليافع ثم الضفدع البالغ

تمرين يوضح التجاذب والتنافر بين الأقطاب المغناطيسية ، حيث إن المغناطيس يحتوي على قطبين شمالي ، وجنوبي ، وعند تقريب الأقطاب المتشابهة في مغناطيسين فإنهما يتنافران...

اختلاف درجات الحرارة على سطح الأرض يعمل على تغيير المناخ

توضيح لاختلاف درجات الحرارة مع تغير الارتفاع

تتم معرفة الجهات الأصلية الأربعة عن طريق النجم القطبي ويسمى نجم الشمال وهو النجم الأخير في كوكبة -مجموعة- الدب الأصغر ويستدل عليه بنجمين من كوكبة الدب الأكبر ،...

جهاز ميل الإبرة المغناطيسية يعمل على قياس زاوية ميل الإبرة المغناطيسية عند خط الاستواء وعند القطب الشمالي

مخطط يوضح مغناطيسية أو قطبية الأرض المقلوبة

Painting of Black-footed ferret ( Mustela nigripes):is a small carnivorous North American prairie animal closely related to the Steppe Polecat also known as Giant Mouse from Russia, and a member of the diverse family Mustelidae which also includes weasels, mink, polecats, martens, otters, and...

Painting of Montane bamboo rat (Olallamys albicauda):Northwest and central Colombia.Groves of Chusquea bamboo in the montane forests of the Colombian Andes.Nocturnal and arboreal, with the long tail used as a balancing pole. These animals make a whistling cry.Lower Risk/Near Threatened due to...

Painting of Gansu pika (Ochotona cansus):are endemic to China and are located in the Ganzu, Qinghai, and Sichuan provinces.inhabit alpine shrub habitats, which are part of steppe-meadow environments. Ganzu pikas live in alpine areas where temperatures fall below freezing even during summer...

Painting of Redeared slider (Trachemys scripta elegans),It is a native of the southern United States, but has become common in various areas of the world .Red-eared Sliders are omnivores and eat a variety of animal and plant materials in the wild including, but not limited to fish, crayfish,...

Painting of Female spotted turtle (Clemmys guttata),Great Lakes region from northern Illinois to southern Ontario, and the eastern United States from Maine to central Florida. HABITAT Bogs, wet meadows, and woodland streams. FEEDING & DIET The spotted turtle is omnivorous, consuming a variety of...

Painted turtle (Chrysemys picta),DISTRIBUTION:This widespread species is found from southwestern British Columbia to Nova Scotia and throughout the central and southern regions of temperate North America. Disjunct opulations occur in the U.S. Southwest.HABITAT:Ponds, streams, slow-flowing...

Painting of Yellow mud turtle (Kinosternon flavescens), DISTRIBUTION Ranges nearly continuously from southern Nebraska to southern New Mexico and to northeastern Mexico, with relict populations known in northwestern Nebraska, Iowa, Illinois, Missouri, Kansas, and east Texas. HABITAT:An...

Painting of Pond slider (Trachemys scripta), DISTRIBUTION This widespread species is found from southern Michigan throughout the central, southern, and southeastern regions of temperate North America. HABITAT Ponds, streams, slow-flowing portions of rivers and estuaries. FEEDING &...

Painting of Western swamp turtle (Pseudemydura umbrina), DISTRIBUTION Known only from a few wetlands near Perth, Western Australia. HABITAT Seasonally inundated swamps and marshes.FEEDING & DIET This species is carnivorous, feeding on tadpoles, crustaceans, and the adults and larvae of aquatic...

Painting of Helmeted turtle (Pelomedusa subrufa), DISTRIBUTION Africa from Senegal and Ethiopia to South Africa, Madagascar, southern Saudi Arabia, and Yemen. HABITAT Helmeted turtles are semiaquatic, inhabiting ponds, marshes, and streams, as well as temporary rain pools.FEEDING & DIET These...

Painting of Common musk turtle or stinkpot (Sternotherus odoratus), DISTRIBUTION Ranges in North America from New England and southern Ontario to Wisconsin and south through Texas and Florida. HABITAT This turtle inhabits nearly any permanent body of fresh water, but prefers ponds or lakes with...

Painting of American crocodiles (Crocodylus acutus), DISTRIBUTION United States, Mexico, Central America, northern South America, islands of the Caribbean Sea. HABITAT Coasts along mangroves, estuaries, large rivers, and sometimes inland lakes.FEEDING ECOLOGY AND DIET This species eats large...

Painting of River cooter hatchling (Pseudemys concinna), Geographic Range The river cooter occurs in the east and southeast part of the United States. The range covers an area from eastern Virginia south to Florida, west to eastern Texas, north to southeast Nebraska, and east back to the origin....

Vector generated image of Magnet:It is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets.