Crocodiles and Turtles of Borneo
Whether you're a herpetologist or just have a fascination for reptiles, you will want to check out this Web site from the Institute of Biodiversity and Environmental Conservation at the University of Malaysia, Sarawak. The site presents all documented crocodiles and turtles found on Borneo, representing six families altogether. An easy-to-use drop-down menu for each family lists individual species. Each species page provides a great photo as well as the "current valid scientific name, the Englis
EPA: Tools and Literature
Green Chemistry, as its name implies, is an environment friendly practice of using chemistry to prevent pollution. The US Environmental Protection Agency (EPA) created the Green Chemistry Expert System software that can be freely downloaded from this site. The program can be used to assess hazardous substances in chemical reactions, learn about green synthetic methods, design safer chemicals by modifying existing ones, consider alternatives to traditional solvents, or search for additional refer
Physicians for Social Responsibility: MercuryActionNOW
MercuryActionNOW is an "online resource created by Physicians for Social Responsibility (PSR) to provide health care professionals and concerned citizens with information about the effects of mercury emissions on public health." The website is full of links to reports, fact sheets, letters, and other websites regarding mercury-related pollution and health issues. Examples include a downloadable Salmon Contaminant Factsheet; the Environmental Protection Agency's Mercury website; the CDC's Second
Forest History Society
Affiliated with Duke University, the Forest History Society (FHS) "links the past to the future by identifying, collecting, preserving, interpreting, and disseminating information on the history of interactions between people, forests, and their related resources..." Founded in 1946, FHS offers extensive resources for anyone interested in the history of forests. This website contains links to FHS archives, research and publications, U.S. Forest Service history, searchable databases, and more. Th
Welcome to the Web
Welcome to the Web is a great place to learn the basics of using the Internet and the World Wide Web. It is tailored to children, but if inexperienced adults can get past the cartoon drawings, anyone can benefit from the site. The first section provides an overview of the Internet and some terminology. Next is a section on guestbooks, followed by an overview of Web browsers. "Searching the Net" and research techniques comprise the last two sections. Each category consists of several interactive
Use the graph of the feasible region to find the maximum or minimum value of the objective function. Vary the constraints and explore how the graph of the feasible region changes in response.
This interactive applet operates in one of two modes: auto draw and create shape mode, allowing the user to explore the area and perimeter of non-standard shapes. Immediate feedback is given on answers entered.
Your sense of smell
This single-page resource about the sense of smell presents a handful of facts about smell together with scientific illustrations. For example, the resource points out how many odors humans can detect and what scientists still do not know about smell. It also compares our sense of smell to that of rodents. The scientific illustrations are a set of connected, labeled diagrams of the key structures and pathways involved in sensing smell, including the olfactory membrane and olfactory receptors. Th
National Geophysical Data Center: Relief Globe Slides
This set of 20 slides contains 14 global views of the Earth in full color shaded relief, showing land and undersea topography. The planet is seen from vantage points over the poles and each major ocean and land mass. Also included are a rectangular Mercator projection view of the whole Earth, as well as displays of crustal plates and their relation to world seismic activity. The images are computer-generated from a digital database of oceanic bathymetry and land topography.
Energy Transformation on a Roller Coaster
This webpage offers a discussion of work, energy, and force on a roller coaster as it goes through a loop in the track. It includes an animated image of the roller coaster with appropriate data for each point in the track. A multiple choice practice question using the relevant equations is also available.
Waves, sound and light
Teachers can give demonstrations and students can conduct virtual physics experiments related to waves using the Shockwave simulations at this site. Simulations are designed to explore sound wave frequencies, echoes, a phased array, ultrasound, interference patterns, the doppler effect, and more. Students will need teacher assistance as there is little explanatory material with the simulations.
Box model (grades 6-8)
This virtual manipulative enables the student to randomly generate data that is displayed on a chart. The chart shows the results of a simulated drawing with replacement from a set of numbers selected by the student. The manipulative can be used to simulate flipping a coin or tossing a die. A pause button stops the simulation. A button for showing theoretical probability places an outline on the theoretical probabilities chart, which allows the student to compare the theoretical and experimental
Graphing for Area
Middle School, difficulty level 2. Graph six points and find the area of the resulting hexagon.
The future of energy, efficiency
Energy-efficient appliances and vehicles can greatly reduce the amount of energy Americans use. This informational piece, part of a series about the future of energy, introduces students to the consequences of using energy more efficiently. An example about baking a pie provides students with a practical definition of efficiency. A discussion of energy-efficient appliances and processes follows as students read about the Energy Star label. The overall efficiency of a power plant is described, sh
How Fast Can a Carrot Rot?
Students conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrots for the materials to be decomposed, and their experiments are carried out in plastic bags filled with dirt. Every few days students remove the carrots from the dirt and weigh them. Depending on the experimental conditions, after a few weeks most of the carrots will have decomposed completely.
Walk-through of "Blinky Palermo" with exhibition curator Lynne Cooke
On opening night, February 24, exhibition curator Lynne Cooke leads visitors on a walk-through of the Hirshhorn installation, exploring the evolution of Palermo's aesthetic and the significance of his contributions to postwar painting.
Pushing It Off a Cliff
Lesson 2 will be in the Research and Revise step and will be focusing on the conservation of energy solely between gravitational potential energy and kinetic energy. Students start out with a virtual laboratory, and then move into the notes and working of problems as a group. A few questions are given as homework. A dry lab that focuses on the kinetic and potential energies on a roller coaster concludes the lesson in the Test Your Mettle phase of the Legacy Cycle.
Tools and Equipment, Part I
Through a series of activities, students discover that the concept of mechanical advantage describes reality fairly well. They act as engineers creating a design for a ramp at a construction site by measuring four different inclined planes and calculating the ideal mechanical advantage versus the actual mechanical advantage of each. Then, they use their analysis to make recommendations for the construction site.
6.1 Modularity and the object-oriented approach
Enterprise systems are software applications that automate and integrate all many of the key business processes of an organisation. With some understanding of software development, you will learn about current development practices for this type of system and develop relevant skills to apply them to real-world problems. You will develop core skills in object-oriented analysis and design, allowing you to develop software that is fit for purpose, reusable and amenable to change.
Next steps After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions: