This presentation covers general information about spiders. Use the practical and simple trick to catch a spider and observe their wonderful but scary body.
This presentation is about atoms and ions. You will find out what parts are in atoms, how works electrons and protos and what is ions.
This presentation cover an introduction and explains detailed information about photosynthetic reactions and Calvin cycle.
This presentation focus on atmosphere. You will learn about elements, compounds and mixtures and have chance to grow crystals.