This webpage defines electronegativity (EN), describes its role in polar covalent bonds between atoms and shows the EN of all the chemical elements. It includes a comprehension exercise.

This site offers a definition of "brown dwarf" and of how this type of star forms. It also contains many links to useful background information about related topics in astronomy.

Examples, resources and how to information, and what to include in an electronic portfolios. Electronic portfolios are becoming more and more popular. E-portfolios offer both students, teachers, and schools the opportunity to interact without having to wait for the mail, or having to use any paper to print out school transcripts. They also offer the unique opportunity for a teacher to see a student’s work and personality to best gauge how well a perspective student and academic institution might fit together.

This video was created by a group of students enrolled in agricultural safety and health. The video covers the basics of forklift safety.

Science Friday Kids' Connection is "an educational resource based on National Public Radio’s award-winning radio program, Talk of the Nation: Science Friday, hosted each Friday afternoon by veteran science journalist and author, Ira Flatow. Each content page has a summary of the radio program, discussion ideas, activities, links to the audio, selected resources, and related science standards, all found on the web."

PLoS Biology (eISSN-1545-7885; ISSN-1544-9173) is an open-access, peer-reviewed general biology journal published by the Public Library of Science (PLoS), a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a public resource. New articles are published online weekly; issues are published monthly.

Teacher Institute Teaching Tips is a bite-sized podcast series of almost 70 episodes for science teachers, by science teachers. In each five-minute episode, we give you pedagogy tips, science history, hands-on activities, or other ideas for your science classroom.

This site provides students with a concise overview of the concept of density of solid objects and several opportunities to practice calculating the densities of objects. There is a link at the bottom of the page to information about density of liquids.

Time was when orchestras and ensembles wanted to reach out to new audiences, they took their instruments out to the park and shopping malls where teens and young families tended to gather. In today’s world, increasingly, people are meeting online. Some intrepid, tech-savvy musicians and ensembles are out there in the virtual community, presenting virtual concerts in the new virtual park. Who are they? What are their experiences and what are the lessons we can learn?

Engaging the students in establishing the classroom rules might be a good idea.The article includes some of the activities you could do to involve the students to creat the classroom rules.

What does it mean to be an American? Far from being a fixed concept, over the past 150 years American identity has been constructed and reconstructed through the conflicts, interchanges, and negotiations between different ethnic, cultural, and religious groups. In this course, we will pay particular ...

An introduction to European history from around 1500 to the present. The central question that the course addresses is how and why Europe-- a small, relatively poor, and politically fragmented place-- became the motor of globalization and a world civilization in its won right. Put differently how did ...

European Civilization from the Renaissance to the Present - Fall 07. This course is a survey of Europe from the Renaissance to the present. An introduction to European history from around 1500 to the present. The central questions that it addresses are how and why Europe--a small, relatively poor, and ...

Physics 8A: Introductory Physics - Fall 2007. Introduction to forces, kinetics, equilibria, fluids, waves, and heat. This course presents concepts and methodologies for understanding physical phenomena, and is particularly useful preparation for upper division study in biology and architecture.

Physics 8A: Introductory Physics - Fall 2007. Introduction to forces, kinetics, equilibria, fluids, waves, and heat. This course presents concepts and methodologies for understanding physical phenomena, and is particularly useful preparation for upper division study in biology and architecture.

This course covers transport processes of mass, momentum, and energy from a macroscopic view with emphasis both on understanding why matter behaves as it does and on developing practical problem solving skills. The course is divided into four parts: introduction, conduction, convection, and radiation.

This course covers transport processes of mass, momentum, and energy from a macroscopic view with emphasis both on understanding why matter behaves as it does and on developing practical problem solving skills. The course is divided into four parts: introduction, conduction, convection, and radiation.

This course explores the history of information and associated technologies, uncovering why we think of ours as 'the information age.' We will select moments in the evolution of production, recording, and storage from the earliest writing systems to the world of Short Message Service (SMS) and blogs. ...

What does it mean to be an American? Far from being a fixed concept, over the past 150 years American identity has been constructed and reconstructed through the conflicts, interchanges, and negotiations between different ethnic, cultural, and religious groups. In this course, we will pay particular ...

What does it mean to be an American? Far from being a fixed concept, over the past 150 years American identity has been constructed and reconstructed through the conflicts, interchanges, and negotiations between different ethnic, cultural, and religious groups. In this course, we will pay particular ...