کارت شما خالی است
In this lesson, you can learn about the advantages of condoms and why prevention is important during sexual intercourse.
In this lesson, you can learn what you can do to help create a sustainable environment.
With the help of this lesson, you can understand why it is important to make decisions that protect the future.
This lesson helps you understand how waste affects the environment and your everyday life.
The effects of excessive phone use on our posture
In this lesson, you can read about how addiction develops and the warning signs that may indicate it.
The functioning of the human body and a car is similar: both use an external energy source whose energy is transformed by internal processes into the energy required for operation.
Trees can reduce the temperature of their surroundings through shading and evaporation. This natural, energy-efficient cooling power can be as effective as air conditioning.
Az emberi látás néhány érdekességét mutatja be ez a tananyag.
Viruses consist of protein and DNA or RNA; they reprogram infected cells to produce more viruses.
گرده برای لقاح تخمک گیاهان است. دانه های گرده در شکل ها و اندازه های متنوع، مشخصه گونه ها قرار می گیرند.
This animation demonstrates birds' bones and eggs through the example of the common blackbird.
The characteristic colours of the common kingfisher aid the bird in catching its prey.
حشرات را می توان بر اساس چرخه زندگی خود به سه دسته تقسیم کرد: حشرات متابولوس، همی متابولوس یا هولومتابولوس.
گونه های منقرض شده ماهی که دارای ´زره´ ضخیم هستند که از سر محافظت می کنند.
Living fossil, important stage in the evolution of tetrapods.
یک دوزیست ماقبل تاریخ و نماینده اولیه چهاراندامان، که ۳۶۰ میلیون سال پیش منقرض شد.
Large, extinct species of cats named after the shape of their large canine teeth.
یکی از شناخته شده ترین گونه عنکبوت ها که اغلب به عنوان حیوان خانگی نگهداری می شود. نیش آن برای انسان کشنده نیست.
