In this 8th grade science lesson, students review the six essential elements of life and discuss how they function in the garden.
Learners will identify sources of air pollution, explain the greenhouse effect, and detail procedures for improving and maintaining air quality. This represents a portion of the Introduction to Agriculture, Food, and Natural Resources (AFNR) series in Nebraska middle and high school agricultural education.
This course is an introduction to chemical oceanography. It describes reservoir models and residence time, major ion composition of seawater, inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxygen, and sulfur. Uptake of anthropogenic carbon dioxide by the ocean. Material presented through lectures and student-led presentation and discussion of recent papers.
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Heavy-metal mines might be a tough environment to grow up in, but many microbes call them home, including viruses. A recent look at core samples from a lead and zinc mine in China revealed how viruses fit into this extreme ecosystem. Environmental factors like acidity appeared to play a big role in shaping viral communities. High acidity tends to make environments less hospitable, even for organisms that live in extreme places. That explains why less acidic (higher pH) core samples contained more viruses. Similarly, viral gene function varied with depth. Deeper and less environmentally extreme layers contained genes with conventional functions related to metabolism and structure, while surface layers largely contained genes of unknown function. Tests also detected genes that viruses might use to get their bacterial hosts to incorporate sulfur from mine runoff..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.