Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 4: Carbon Cycling (HS), HE 3: Stratigraphic Records (MS), History of Earth, Inheritance & Variation of Traits, Inheritance 1: Mitosis (HS), Inheritance 4: Population Genetics (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), Life Science, M&E 1: Photosynthesis (HS), M&E 1: Photosynthesis (MS), M&E 4: Biogeochemical Cycles (MS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Fossil Records (MS), NSE 5: Population Flux (HS)

The evolution of diatoms and their biogeochemical functions

The evolution of diatoms and their biogeochemical functions SUMMARY: This article talks about the evolution, cell structure, and ecological role of diatoms. The first section is an introduction to what diatoms are. The second section talks about the evolution of photosynthesis (from cyanobacteria to eukaryotes with chloroplast). The third section explains the significance of the… Continue reading The evolution of diatoms and their biogeochemical functions

Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 1: Materials/Energy Flow (MS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS)

Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic

Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic SUMMARY: In this experiment, the researchers sampled dead mesopelagic fish from the Northwest Atlantic Mid-Ocean area (between Ireland and Newfoundland). The water and the fish guts were strained for microplastics. Researchers found that 73% of the fish had microplastics in their stomach. Most of the… Continue reading Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic

Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 1: Materials/Energy Flow (MS), ES 2: Hydrological Cycle (MS), ES 3: Earth's Resources (MS), ES 3: Hydrological Cycle (HS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), M&E 3: Food Webs (MS), M&E 4: Biogeochemical Cycles (MS), M&E 5: Matter/Energy Cycles (HS), M&E 6: Biogeochemical Cycles (HS), Matter & Energy in Organisms/Ecosystems, W&C 2: Biomes (MS), Weather and Climate

Protozoa and plant growth: the microbial loop in soil revisited

Protozoa and plant growth: the microbial loop in soil revisited (NOT OPEN ACCESS) SUMMARY: This is an in-depth review on the rhizosphere and the interactions between protozoa, nematodes, and plant roots. LESSON COMMENTS: This can be read like a textbook for students. Alternatively, teachers can assign relevant sections. The rhizosphere can be grown and observed… Continue reading Protozoa and plant growth: the microbial loop in soil revisited

Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 2: Hydrological Cycle (MS), ES 3: Hydrological Cycle (HS), HSus 1: Human Activity (HS), HSus 2: Monitoring Human Impact (MS), HSus 3: Human/Ecosystem Interactions (HS), HSus 5: Showing Human Impact (HS), Human Sustainability

Investigating Microplastics on Land

Microplastics as an emerging threat to terrestrial ecosystems (NOT OPEN ACCESS) SUMMARY: Though there has been a lot of research on microplastics in aquatic environments, there aren’t studies looking into the effects of microplastics on land. Researchers in this article suspect that there may be more microplastics on land than in the oceans; organisms that… Continue reading Investigating Microplastics on Land

Earth Science, Earth's System, ES 1: Materials/Energy Flow (MS), ES 3: Earth's Resources (MS), HE 1: Plate Tectonics (HS), HE 2: Early Earth (HS), HE 2: Geoscience (MS), HE 3: Stratigraphic Records (MS), History of Earth

Coal Formation Not Correlated with Fungal Evolution

Delayed fungal evolution did not cause the Paleozoic peak in coal production SUMMARY: This article provides evidence to refute the theory that most of our coal was formed during a period of time (Carboniferous-Permian age, about 299 million years ago) when fungus had not evolved enzymes to digest lignin. Plant material was thought to have… Continue reading Coal Formation Not Correlated with Fungal Evolution

Earth Science, Earth's System, ES 1: Materials/Energy Flow (MS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS), HE 1: Earth's History (MS), HE 2: Early Earth (HS), History of Earth

Beaming Naphthalene Part 1

Infrared Study of UV/EUV Irradiation of Naphthalene in H2O+NH3 Ice SUMMARY: This study beamed naphthalene in a mixture of water and ammonia ice with different energy levels of UV light. Results showed that naphthalene breaks down and the pieces react into various small carbon-based compounds. Since conditions of this experiment try to replicate those found… Continue reading Beaming Naphthalene Part 1