This is a scientific report discussing the history of the bicydle starting with the treadwheel by Karl Drais over the velocipede to the modern bicycle. The text is written in childfriendly language for children 8 and up.
This is a scientific report with supporting links and audio files. The discussed sections are: Big Bang, the creation of the universe, creation of the solar system and the planet earth. Two audio files describe different creation stories in different traditions and the search for a second planet Earth. The two supporting files deal with the hypothetical questions of what is beyond the universe and what exactly the Big Bang was. The text is written and spoken in child friendly language for children 8 years and up.
This scientific article provides anatomical features and the adaptive advantages of those features of owls and giraffes. The text is written for native speakers 9 years and up.
This scientific article iluminates with three different examples, how animals produce venom and for which reason: poison dart frogs absorbs it by feeding on venomous plants; spitting cobras produce their own venom within the system; puffer fishes probably eat bacteria that produce the venom. The text is written for native speakers 9 years and up.