Just Passing Through
The purpose of this resource is to develop an understanding of some of the relationships between soils of different types and water. Students will time the flow of water through soils with different properties and measure the amount of water held in these soils. They will also experiment with the filtering ability of soils by testing the pH of the water before and after it passes through the soil and observing changes to the clarity of the water and to the characteristics of the soil. Students w
Land Cover Change Detection Protocol
The purpose of the resource is to investigate changes in the major land cover types of Study Sites by examining Landsat satellite images acquired years apart.
Observing, Describing, and Identifying Clouds
In this activity students observe and sketch clouds, describing their forms. They initially generate descriptions of a personal nature and then move toward building a more scientific vocabulary. They then correlate their descriptions with the standard classifications using the ten cloud types identified for GLOBE. Each student develops a personal cloud booklet to be used in conjunction with the GLOBE Cloud Chart. . The intended outcome is that students will be able to identify cloud types using
The purpose of this activity is to observe the type and cover of clouds including contrails. Students observe which of ten types of clouds and how many of three types of contrails are visible and how much of the sky is covered by clouds (other than contrails) and how much is covered by contrails. Intended outcomes are that students learn how to make estimates from observations and how to categorize specific clouds following general descriptions for the categories. They will learn the meteorologi
Machines that change climate: Porsche 911 Turbo vs. Toyota Prius
This activity asks students make 'back-of-the-envelope' calculations to estimate the amount of carbon dioxide released to the environment by different types of automobiles. It shows students that decisions they make can significantly alter the amount of greenhouse gases they release to the environment. ...
Winter Field Lab: Snow Hydrology
This field activity may be implemented during late winter or early spring when things have not quite thawed. Students collect their own data from a snowpack, including measuring water equivalent, identifying types of snow metamorphism, finding evidence of precipitation patterns, and judging possible snowpack hazards. Back in the lab, students evaluate their data, draw conclusions, and make a report. This activity is designed for upper-level undergraduate and graduate-level geohydrology courses.
Sample Survey Activity
This activity stresses the importance of writing clear, unbiased survey questions. It explore the types of bias present in surveys and ways to reduce these biases.
The Struggle for Existence: Competition Between Bacterial Strains
Two strains of Escherichia coli are grown in broth and plated out at intervals. A population growth curve is plotted for each strain. The two strains are then grown together for several days in different types of broth. Students from each day's laboratory plate out the mixed culture on selective media. ...
The Study of Development Using Red Algae
This exercise can be used to demonstrate developmental processes at the cellular level, environmental control of photosynthesis, and cell enlargement by using red algae, which is well-suited for these types of experiments.
Two Reliable and Inexpensive Lysozyme Assays for Teaching Enzymology and Microbiology
This exercise will allow students to actively learn about enzyme assays by performing two types that have relevance to the students interests, radial diffusion assay and spectrophotometry, and by using an enzyme, lysozyme, that is easily understandable and is applicable to their studies outside of this lab.
What's the Big Idea? Archeology
This fun Web article is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about archeology Piecing Together the Puzzle of History looks at how archaeologists use clues to assemble a picture of the past. Clues to the Past explains that, like all scientists, archaeologists begin with a question they want to explore. Fieldwork Is Where They Dig In explores the challenges of finding a site to excavate. Evidence of an Era has an overview of th
Editing Voice in Audacity-part 6
Sometimes there are pauses, clicks, ums, etc in your audio interviews. To make your podcasts polished this video discusses and demonstrates how to edit out the parts that you do not want.
Woordsoorten : Oefenblad Dit is een oefenblad waarbij de leerlingen aanduiden of het een werkwoord, een zelfstandig naamwoord of een bijvoeglijk naamwoord is.
Dit is een oefenblad waarbij de leerlingen aanduiden of het een werkwoord, een zelfstandig naamwoord of een bijvoeglijk naamwoord is.
Conservation and biodiversity
Dr. Richard Field research interests lie in conservation, biodiversity and the forces that structure ecological communities. In this podcast, Dr Field from the School of Geography compares and contrasts his experiences as a researcher in national parks in Honduras and Indonesia, and the different types of ecological communities he has studied, and goes on to introduce the emerging field of conservation bio-geography.
Uniform convergence and pointwise convergence
The aim of this material is to introduce the student to two notions of convergence for sequences of real-valued functions. The notion of pointwise convergence is relatively straightforward, but the notion of uniform convergence is more subtle. Uniform convergence is explained in terms of closed function balls and the new notion of sets absorbing sequences. The differences between the two types of convergence are illustrated with several examples. Some standard facts are also discussed: a unifo
21W.732-5 Introduction to Technical Communication: Explorations in Scientific and Technical Writing
This course is designed to help you develop skills that will enable you to produce clear and effective scientific and technical documents. We will focus on basic principles of good writing-which scientific and technical writing shares with other forms of writing-and on types of documents common in scientific and technical fields and organizations. While the emphasis will be on writing, oral communication of scientific and technical information will form an important component of the course, as w
This short video discusses the two main types of these huge tortoises and show how these animals get water from cacti if there is no water available.
Japanese Dancers in DC
Taiko performance/Dance performance in Washington DC. (1:35)
Notes in Spanish Intermediate 3 - Nuestra Casa
Ben and Marina take you on an audio tour of their flat in Madrid, and discuss different types of housing in Spain. See notesinspanish.com for full details, and to obtain a full transcript of our conversation.
The Sport of Fencing
A short video that explains a bit of the history of fencing and shows some combat. It also goes into more detail about the types of weapons and how the winner is chosen. Of some value where fencing is taught as an introduction. Run time 3:27