In this interactive activity, learners explore factors that cause atoms to form (or break) bonds with each other. The first simulation depicts a box containing 12 identical atoms. Using a slider to add heat, students can see the influence of temperature on formation of diatomic bonds. Simulations #2 and #3 introduce learners to reactions involving two types of atoms. Which atom forms a diatomic molecule more easily, and why? The activity concludes as students explore paired atoms (molecules). In this simulation they compare the amount of energy needed to break the molecular bonds to the energy needed to form the bonds. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology.

Elementary grade students investigate heat transfer in this activity to design and build a solar oven, then test its effectiveness using a temperature sensor. It blends the hands-on activity with digital graphing tools that allow kids to easily plot and share their data. Included in the package are illustrated procedures and extension activities. Note Requirements: This lesson requires a "VernierGo" temperature sensing device, available for ~ $40. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology. The Consortium develops digital learning innovations for science, mathematics, and engineering.

With the help of simple, teacher-led demonstration activities, students learn the basic concepts of heat transfer by means of conduction, convection, and radiation. Students then apply these concepts as they work in teams to solve two problems. One problem requires that they maintain the warm temperature of one soda can filled with water at approximately body temperature, and the other problem is to cause an identical soda can of warm water to cool as much as possible during the same thirty-minute time interval. Students design their solutions using only common, everyday materials. They record the water temperatures in their two soda cans every five minutes, and prepare line graphs in order to visually compare their results to the temperature of an unaltered control can of water.

Students make a simple conductivity tester using a battery and light bulb. They learn the difference between conductors and insulators of electrical energy as they test a variety of materials for their ability to conduct electricity.

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them.

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them.

This activity represents a culmination project for this unit by means of which students can assess whether the IPCC prediction of increased storminess as an outcome of global warming survives testing. For the previous three weeks students will have conducted several inquiry-based group activities designed to introduce and reinforce fundamental meteorology/climatology concepts. In this 2-day project, students access online AVHRR SST imagery, as well as tabulated numeric data regarding historical North American tropical cyclones, import data into Excel for interpretation and analysis, and submit two group reports.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Explore how populations change over time in a NetLogo model of sheep and grass. Experiment with the initial number of sheep, the sheep birthrate, the amount of energy sheep gain from the grass, and the rate at which the grass re-grows. Remove sheep that have a particular trait (better teeth) from the population, then watch what happens to the sheep teeth trait in the population as a whole. Consider conflicting selection pressures to make predictions about other instances of natural selection.

The class of CIVE230: Engineering and Sustainable Development have been at it again, learning remotely in Spring 2021. This is the second COVID-19 edition of the course!The course introduces sustainability on two levels: qualitative concepts and background information is covered; and quantitative models which emphasize core engineering methods are applied to sustainability problems. Quantitative methods are derived and applied to air quality, water quality, energy and solid waste. Attention is given to sustainable urban systems, as they apply to both developed and developing countries. Sustainability concepts covering the triple bottom line are also presented, and their applicability to sustainable cities are demonstrated. Students in the course were tasked with making a contribution to an e-book. They were creative and innovative in applying course concepts to cities of their choice and exploring sustainability challenges and innovations. Their sustainability project encouraged them to explore sustainable infrastructure, solutions and technologies in Canada and globally to generate an enriched learning experience and to tie ideas to the Sustainable Development Goals (SDG) and the Canadian Engineering Grand Challenges (CEGC).

This laboratory activity takes place in a computer lab that is equipped with ArcGIS (we are currently using ArcGIS 9.3). Students will go to NASA's oil spill gallery website and download the full size image of the Deepwater Horizon oil slick from July 14th, 2010 taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Aqua satellite at 1:55 p.m. Central Daylight Time. Their task is to to analyze the satellite imagery as an RGB composite and to experiment with reclassification techniques to subdivide the continuous raster dataset into user-defined numbers of ranges that will help visualize the oil spill. The activity introduces students to GIS software, remote sensing analysis, and sets up questions on spatial patterns and consequences of energy use.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

This is a PBL project that used the North Carolina Gravity Games as the basis for students to understand the concepts of work and energy. It was specifically designed to help students increase their depth of knowledge of work, the conservation of energy, power, and the work-kinetic energy theorem. The project required students to design, build, and then use as a basis to prove their applied mastery of work and energy, a working "gravity car" that was tested locally, with the top three entering in the state-wide Gravity Games competition in Lenoir, NC. Note that the project was designed and delivered per the North Carolina honors Physics curriculum and it can be customized to meet your own specific curriculum needs and resources.

Students analyze video clips of kids rolling down a hill on skates, scooters, and bikes to determine whether mechanical energy is conserved.

A high speed video clip of a roller coaster is used as an example of conservation of mechanical energy. Students use the video to determine whether mechanical energy is conserved while the roller coaster rolls up, and then back down a hil.

How angular momentum is conserved within a system when there is no external torque.

Successful completion of this cooperative learning activity requires the active involvement of the individual, the small group and the entire classroom (collaboration). The goal is to make a simple task as complicated as possible by constructing a single complex machine.

Short Description:
Consumer Nutrition is an OER textbook developed as an introductory nutrition resource.

Long Description:
Consumer Nutrition is an OER textbook developed as an introductory nutrition resource. It includes information on nutrients, alcohol, dietary guidelines, food safety, dietary supplements, energy balance, nutrition and fitness, food insecurity and waste, and nutrition through the lifecycle.

Word Count: 160128

(Note: This resource's metadata has been created automatically by reformatting and/or combining the information that the author initially provided as part of a bulk import process.)

First published in 1981 by MIT Press, Continuum Electromechanics, courtesy of MIT Press and used with permission, provides a solid foundation in electromagnetics, particularly conversion of energy between electrical and mechanical forms. Topics include:

electrodynamic laws, electromagnetic forces, electromechanical kinematics, charge migration, convection, relaxation, magnetic diffusion and induction interactions, laws and approximations of fluid mechanics, static equilibrium, electromechanical flows, thermal and molecular diffusion, and streaming interactions. The applications covered include transducers, rotating machines, Van de Graaff machines, image processing, induction machines, levitation of liquid metals, shaping of interfaces in plastics and glass processing, orientation of ferrofluid seals, cryogenic fluids, liquid crystal displays, thunderstorm electrification, fusion machines, magnetic pumping of liquid metals, magnetohydrodynamic power generation, inductive and dielectric heating, electrophoretic particle motion, electrokinetic and electrocapillary interactions in biological systems, and electron beams.

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Researchers from the United Kingdom recently discovered several genes that protect neurons in Parkinson’s disease, creating possibilities for new treatment options. Two of the genes affect how mitochondria break down amino acids to generate nucleotides -- the metabolism of these molecules produces the energy that cells need to live. Dysfunctional mitochondrial metabolism has been linked to Parkinson’s, and these researchers previously showed that boosting this generation of nucleotides can protect neurons. Based on these findings, they set out to identify the genes that control this process. Some forms of Parkinson’s are caused by mutations in the genes _PINK1_ and _PARKIN_, which are instrumental in mitochondrial quality control. Fruit flies with mutations in these genes accumulate defective mitochondria and exhibit Parkinson’s-like changes, including loss of neurons. The researchers used _PINK1_ and _PARKIN_ mutant flies to search for other critical Parkinson’s genes..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

This video segment adapted from the Atmospheric Radiation Program explains the differences in the formation of tropical convective cloud systems over islands and over the ocean.

Host Harry Kreisler welcomes Ambassador Princeton N. Lyman, former U.S. Ambassador to South Africa and Nigeria for a discussion of U.S. Africa Relations. He talks about AfricaŐs strategic importance to the United States focusing on issues such as energy, health, terrorism, and human rights. He describes the role of China in African affairs and analyzes the U.S. capacity to engage Africa in the new strategic environment of the post 911 world. (52 min)