This award-winning web page is devoted to the study of energy sources, both renewable and non-renewable. It features multimedia content on nine sources of energy: fossil fuels, solar, wind, geothermal, nuclear, biomass, hydroelectric, tidal, and ocean waves. Each section is supported with video clips, diagrams, schematics, and images of how the energy source is used to deliver power. The author discusses advantages/disadvantages of each energy source and provides links to additional information for extended learning. The content of this resource is written at a Grade 9 level. Extensive integration of video, diagrams, and schematic drawings makes the collection especially appropriate for accommodating a variety of levels and learning modalities.

This resource for secondary physical science gives step-by-step instructions for building a water-powered electric generator from plastic spoons. The model closely resembles real micro-hydro designs, and can produce enough electricity to light a small light bulb. The 9-page construction plans may be freely downloaded and are organized for first-time builders. Comprehensive background information is provided on water power and renewable energy. All materials can be readily purchased from grocery or hardware store. Links are also provided to animated tours of hydroelectric plants and giant turbines. This item is part of a collection of K-12 projects on renewable energy sources and clean energy technology. Registered teacher-users have access to a complete lesson plan with teaching tips. Editor's Note: Although this resource is designated for use in Grades 6-12, the reading level for the student guide is Grade 9, and for background information is Grade 10. Overall, the concepts are appropriate for the cognitive level of Grades 7-8, but teacher scaffolding may be needed for unfamiliar vocabulary. High school students should be expected to complete the activity with minimal scaffolding.

This page features a classroom project for secondary science education that integrates engineering design with optics and thermodynamics. Students work on teams to construct a solar oven with flat reflector panels. The project was designed to help learners understand that, to harness the sun as a source of energy, solar energy must be converted from visible light into heat or electricity. The construction kit calls for simple materials such as cardboard and duct tape, and includes a downloadable pattern for building the oven. Background information gives student and teacher support on the subject of solar heat and its applications. Registered teacher-users also have access to supporting lesson plans. This resource is part of a larger collection of hands-on projects and teaching materials on the topic of renewable energy. Editor's Note: Although this resource is designated for use in middle school, the reading level for the student guide is Grade 10, and for background information is Grade 11. Overall, the concepts are appropriate for the cognitive level of Grades 7-8, but teacher scaffolding may be needed for unfamiliar vocabulary. High school students should be expected to complete the activity with minimal scaffolding.

This hands-on project provides step-by-step instructions for building a vertical axis wind turbine in secondary classrooms. The 17-page construction plans may be freely downloaded and are organized for first-time builders. Comprehensive background information on wind energy and renewable energy are provided. Registered teacher-users also have access to supporting lesson plans. All of the materials are readily available in hardware or grocery stores. This resource, which meets multiple national science standards, was developed to spark students' interest in learning more about renewable energy sources and the science and engineering principles that underlie the harnessing of renewable power. Editor's Note: Wind turbines work by using an internal generator to convert the mechanical energy of the spinning turbine shaft into electricity. This particular project is modeled after the Savonius rotor system, which uses uses drag -- not lift -- to capture energy for making electricity. Although it isn't as efficient as a conventional horizontal axis turbine, it is much easier to build.

This internet-based project for Grades 6-12 taps into real-time data as the framework for a student investigation of tsunami phenomena. First, students look at historical information on five tsunamis, then interactively explore the science behind tsunamis and wave behavior. Next, students will access and interpret existing data from the highly destructive 2004 Indian Ocean tsunami. Finally, students take on roles as scientists to develop a global tsunami preparedness plan based on a budget. They must support their ideas with evidence from reliable data and present arguments based upon their studies. Included are detailed project instructions, teacher's guide, reference material, and a student discussion forum. This project is part of the CIESE K-12 Curriculum Program's Real Time Data Projects. See Related Materials for a link to the full index of data projects.

This simulation shows a ball launched by a spring-gun in a building with a very high ceiling. The student's task is to calculate an initial velocity so that the ball barely touches the 80-foot ceiling. Students can test their answers by setting the initial velocity on the simulation, then watch the ball's path. Graphs of position vs. time or velocity vs. time may be turned on to view the ball's motion as a function of time. Editor's Note: This model is especially helpful for visualizing the relationship between the one-dimensional motion of this example and its graph, as it displays the ball continuously bouncing at constant velocity in a straight line from floor to ceiling. There is no horizontal displacement. For students who need help determining time of flight and peak height, SEE ANNOTATIONS for an editor-recommended tutorial. This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below. To modify or customize the model, See Related Materialsfor detailed instructions on installing and running the EJS Modeling and Authoring Tool.

Structure of solids, liquids and gases at the molecular level is shown in this animation.

This free, open source simulation tool, the outgrowth of physics education research, was developed as a means for students to visualize the underlying concepts necessary to approach and solve heat transfer problems. The program models all three mechanisms of heat transfer-conduction, convection, and radiation. The Energy2D package models only two-dimensional systems, thus is not intended to replicate commercial engineering software used in many university settings. Rather, it was constructed to allow for rapid experimentation through use of dynamic graphics that users can easily manipulate and comprehend. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology.

This activity introduces students to the basic concepts of light, followed by several simulations that model the interactions of light with matter. Students investigate the wave nature of photons, view models of light/matter interactions, and explore how light energy is converted into heat energy. They may also create their own model photon beam and generate an absorption spectrum. As learners manipulate light intensity and frequency of light, they can visualize the effects on the heating of matter. With this basic understanding, they move to the wavelike properties of photons to explore three ways photons interact with matter: 1) no interaction, 2) absorption, 3) emission. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology. Users may register for additional free access to teaching guides, data capture, and tools to adapt/modify the models for customized classroom use.

This activity explores the relationship between graphs of Distance vs. Time and Velocity vs. Time by blending a motion sensor lab with student-generated digital graphs. First, learners use the online graph sketching tool to predict graphs of both distance and velocity for a toy car being pushed up a ramp and allowed to coast back down. Next, they use a motion sensor to collect data on a real toy being pushed up a ramp. Finally, they analyze differences in slope between their original predictions and the actual data from the motion sensor. This item is part of the Concord Consortium, a nonprofit research and development organization dedicated to transforming education through technology. The Concord Consortium develops digital learning innovations for science, mathematics, and engineering.

This telecollaborative project is designed to provide students in grades 9-12 with an orientation to systems engineering concepts. Through guided activities students will reverse-engineer a common device that contains both electrical and mechanical components and then create a systems diagram for the deconstructed device. (In this case, the device is a disposable camera.) In partnership with other project participants across the country, learners will reassemble the device and test their reconstruction against quality controls. The project is free with teacher registration. The module includes lesson plans, comprehensive teacher tutorial, reference material, question sets and worksheets, and digital collaboration tools. This resource was developed by the Center for Innovation in Science and Engineering Education (CIESE). Participation is cost-free with teacher registration. Editor's Note: Several components of this activity specifically address a physics curriculum. Disposable flash cameras provide an opportunity for analysis of electric field, charging a capacitor, and energy storage on a capacitor.

This website is designed to introduce kids to engineering. It includes a section with brief career profiles of various engineering career paths, but the real fun is in the videos. Featuring kids engaged in activities that illuminate key concepts in engineering, these videos showcase the work of engineering in a dynamic and exciting format. For example, one video covers the biomechanics of skateboarding -- taking real kids on a field trip to the Etnies Shoes headquarters where they learn how engineers (who are also skateboarders) use science to design shoes that help absorb impact and minimize injury. Another video takes a group of kids to Disney World to experience how Disney engineers transform potential energy into thrilling roller coaster rides. All of the videos feature a related hands-on activity to let students apply the science concepts involved. Editor's Note: Don't miss the section "Cool Stuff" for games and activities that help students connect the science principles with engineering practice. For easy downloading or full-screen viewing, see Related Materials for a link to the You Tube version of the roller coaster video.

The Introductory Physics 1D Motion Lab asks students to develop a computer model for a ball moving vertically under the influence of gravity. When the file is opened, it is initially programmed with a mass moving at constant velocity. It is assumed that students have first collected data of a basketball or volleyball bouncing under a motion detector. The lab instructions fully explain how to build the computer model using Easy Java Simulations modeling tool. The students will learn how to modify the model to simulate a bouncing ball, define variables, calculate relationships, and change the properties for plotting the graph. The calculus is done for the student. Editor's Note: The Easy Java Simulation tool greatly reduces the amount of programming required to develop computer models. Exercises in student-generated modeling are becoming much more widespread in physics education because of the opportunities for students to test and apply their own prototypes to explain and predict physical phenomena. This resource is distributed as a ready-to-run (compiled) Java archive. In order to modify the simulation (and see how it is designed), users must install the Easy Java Simulations Modeling and Authoring Tool. SEE RELATED MATERIALS for a link to install the EJS modeling tool.

This tutorial offers straightforward information on energy basics, forms of energy, renewable and nonrenewable energy sources, energy transfer, and a historical perspective of scientific breakthroughs in the field. It includes games, experiments, and an Energy IQ test for the middle grades. Especially noteworthy are the diagrams, tables, and images that support the text. This resource was developed by the U.S. Energy Information Administration, an independent organization that collects, analyzes, and disseminates impartial energy information to promote public understanding of issues relating to energy use. Editor's Note: The authors developed this resource for use in the middle grades, but the readability score ranges from Grade 10 to Grade 13 (depending upon the index used). It is appropriate for independent student use in high school settings, however, we recommend scaffolding for use in middle school.

This simulation allows students to compare the motion of free falling objects with and without the influence of air resistance. Air resistance is the result of collisions of the object's leading surface with air molecules. On Earth, objects falling through the air usually encounter some sort of air resistance, though the amount is dependent upon several factors. In this model, a blue ball falls under the influence of gravity alone. A falling red ball is subject to both gravity and air resistance. Students can adjust the amount of air resistance with a slider. When the simulation is played, graphs are simultaneously plotted that show position vs. time, velocity vs. time, and acceleration vs. time for both falling balls. See Annotations for an editor-recommended, interactive tutorial that further explains free fall and air resistance. This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below. To modify or customize the model, See Related Materials for detailed instructions on installing and running the EJS Modeling and Authoring Tool.

This simulation allows students to examine the motion of an object in free fall. Download below. The user can control the initial height (0-20m), set an initial velocity from -20 to 20 m/s, and change the rate of gravitational acceleration from zero to 20 m/s/s (Earth's gravitational constant is ~9.8 m/s/s). Students can also launch the ball upward from any point on the line of motion. The free fall is displayed as a motion diagram, while graphs are simultaneously displayed showing position vs. time, velocity vs. time, and acceleration vs. time. See Annotations for an editor-recommended tutorial that further explains how graphs are used to represent free fall motion. This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below.

Values of the fundamental physical constants, recommended for international use, are provided at this web site developed and maintained by the National Institute of Standards and Technology (NIST). These are the latest values of the constants recommended by CODATA (updated in 2006). Included are values for universal, electromagnetic, and atomic/nuclear constants, as well as non-SI units and conversion factors for energy equivalents. Users may also view background information related to constants, a searchable bibliography, and correlation coefficients between any pair of constants.

This cost-free resource is a chapter from a textbook on introductory chemistry, developed for learners with little background in physics or chemistry. This chapter deals with the atomic nucleus and radiation, nuclear energy, and uses of radioactive substances. It is appropriate for teachers seeking additional content knowledge, high school physics and chemistry courses, and college-level preparatory chemistry. It builds a foundation to understand the physical forces in the nucleus (electrostatic force and strong force), and explains how chemical reactions differ from nuclear reactions. Graphs and diagrams depict what happens in radioactive decay. The section on chemical nuclear equations is straightforward and comprehensible for non-scientists. This collection is part of An Introduction to Chemistry, a set of resources developed by Mark Bishop which includes two textbooks, 15 animated tutorials, downloadable Power Point presentations for teachers, concept maps, and 3D molecular models.

This interactive simulation gives students practice in the operation and the physical parts of a real micrometer, a measuring device that employs a screw to amplify distances that are too small to measure easily. The accuracy of a micrometer derives from the accuracy of the thread that is at its heart. The basic operating principle of a micrometer is that the rotation of an accurately made screw can be directly and precisely correlated to a certain amount of axial movement (and vice-versa), through the constant known as the screw's lead. The Micrometer model was created using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double click the ejs_ntnu_Micrometer.jar file to run the program (Java must be installed).

This multimedia lesson by the American Chemical Society explores factors that affect the motion of molecules. Students add food coloring to a cup of ice water and a cup of hot water, then analyze the difference in how the colors spread/diffuse through each cup. Two interactive animations help them visualize what is happening: heating a substance increases molecular motion, while cooling decreases it. Editor's Note: Often, students in the middle grades have difficulty comprehending why the measured volume increases slightly when water is heated. Many have the misconception that volume is always conserved in a physical change. This resource provides a clear way to understand the volume differences that can occur when molecules move further apart or closer together by heating/cooling. Included in the lesson is a student activity sheet with answer key and suggested discussion questions.