This activity is acid-base titration lab where students determine the percent of calcium carbonate in an eggshell.
Intended Audience: This activity was used for an introductory Geochemistry class, which contained students from sophomore level to master's students. We took the trip in mid-October, about as late as possible in Vermont, after they had gained some previous field experience and lab work in addition to an in introduction to these principles in class.
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This video follows biologist Gretchen Hofmann as she studies the effects of ocean acidification on sea urchin larvae.
Cluster of questions on acid rain deposition.
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Produto educacional destinado, principalmente a pescadores artesanais e comunidades ligadas a pesca artesanal, contendo informações sobre espécies relacionadas a acidentes que envolvem animais aquáticos e pescadores artesanais, o perigo de determinados procedimentos inadequados e procedimentos recomendados como medidas de primeiros socorros.
It's no secret that greenhouse gases warm the planet and that this has dire consequences for the environment whole islands swallowed up by rising seas, animal and plant species stressed by higher temperatures, and upsets in ecological interactions as populations move to cooler areas. However, carbon dioxide has another, less familiar environmental repercussion: making the Earth's oceans more acidic. Higher levels of carbon dioxide in the atmosphere mean that more carbon dioxide dissolves in the ocean. This dissolved carbon dioxide forms carbonic acid the same substance that helps give carbonated beverages their acidic kick. While this process isn't going to make the ocean fizzy anytime soon, it is introducing its own set of challenges for marine organisms like plankton and coral.
Acidity is a tricky concept, and it’s not always like how we see it in the movies. As organic chemists, we need to know how to predict the strength of weak acids and bases. In this episode of Crash Course Organic Chemistry, we’ll learn four key factors that we can use to predict relative acidity. This important tool will help us us to predict the products of chemical reactions.
Acinonyx jubatus: Information
Acipenser fulvescens: Information
Acipenser transmontanus: Information
Aconaemys fuscus: Information
The Acoustics of Speech and Hearing is an H-Level graduate course that reviews the physical processes involved in the production, propagation and reception of human speech. Particular attention is paid to how the acoustics and mechanics of the speech and auditory system define what sounds we are capable of producing and what sounds we can sense. Areas of discussion include:
the acoustic cues used in determining the direction of a sound source,
the acoustic and mechanical mechanisms involved in speech production and
the acoustic and mechanical mechanism used to transduce and analyze sounds in the ear.
In this project, each student will be assigned to a group of three to four students. Each group will be given random character description cards. These characters will be treated as the first generation in a fictitious town. The cards will include specific genetic traits, skills, jobs, as well as reference if the character suffers from type 2 diabetes. Students will need to use the character cards to author and illustrate a short story about the fictitious town which follows at least three generations of the families in the cards. Students must also include pedigrees for a minimum of three traits as well as diabetes as evidence of inheritance.
This is an information sheet on the species, Acris crepitans, provided by the University of Michigan Museum of Zoology.
Acris gryllus: Information
This is an information sheet on the species, Acrobates pygmaeus, provided by the University of Michigan Museum of Zoology.
Acrobatidae: Information
This is an information sheet on the species, Acrochordus arafurae, provided by the University of Michigan Museum of Zoology.
This is an information sheet on the species, Acrochordus javanicus, provided by the University of Michigan Museum of Zoology.
Acropora cervicornis: Information