Curated OER
Group 15, The Nitrogen Group
This short presentation provides a convenient introduction to the nitrogen group in the periodic table of elements. A graphic displays where they are placed in the periodic table. The nitrogen cycle is mentioned and ammonia is explained....
Curated OER
Soil Fertility
Fertility in soil is the topic of this presentation. Future farmers will be able to define fertilizer, list ten essential soil elements, and describe the roles of both primary and secondary nutrients in plant production. Although there...
Curated OER
The Biogeochemical Cycles
The majority of this presentation is a collection of diagrams and graphs that back your lecture on biogeochemical cycles. The last few slides define ecosystems and the Gaia hypothesis. You may find these slides valuable, but will...
Science Geek
Element Classes
Introduce your young chemists to alkali metals, alkali earth metals, transition metals, metalloids, nonmetals, halogens, and noble gasses with a presentation that explains the classes of elements and a few facts about each.