Mayelana nale ebook
In ancient times, humans used lead in everything from cooking tools to water pipes to cosmetics. That was before scientists discovered that lead is poisonous for humans. Today lead is still useful, but we use it with more care in items that hold corrosive materials, like car batteries that hold acid, or to protect us from harmful radiation, like in X-ray machines or nuclear reactors. Pb is lead's symbol, from the Latin word "plumbum." This book will help students better understand the basics of chemistry as they learn what lead is and how this toxic, but important, metal is used in our world.
Nikeza le ebook isilinganiso
Sitshele ukuthi ucabangani.
Ulwazi lokufunda
Amasmathifoni namathebulethi
Faka uhlelo lokusebenza lwe-Google Play Amabhuku lwe-Android ne-iPad/iPhone. Livunyelaniswa ngokuzenzakalela ne-akhawunti yakho liphinde likuvumele ukuthi ufunde uxhunywe ku-inthanethi noma ungaxhunyiwe noma ngabe ukuphi.
Amakhompyutha aphathekayo namakhompyutha
Ungalalela ama-audiobook athengwe ku-Google Play usebenzisa isiphequluli sewebhu sekhompuyutha yakho.
Ama-eReaders namanye amadivayisi
Ukuze ufunde kumadivayisi e-e-ink afana ne-Kobo eReaders, uzodinga ukudawuniloda ifayela futhi ulidlulisele kudivayisi yakho. Landela imiyalelo Yesikhungo Sosizo eningiliziwe ukuze udlulise amafayela kuma-eReader asekelwayo.
