Applying a machine metaphor for functions, this virtual manipulative allows the learner to examine the relationship between input (domain) and output (range). The learner inputs numbers from one to four and the virtual machine generates output information in a table. The learner is challenged to find the output for values five through seven and enter them in the table. Errors are noted automatically. Using a new function button, different types of functions are randomly offered for investigation
Author(s): Utah State University. National Library of Virtual

Science Sampler : The scientific method -- Is it still useful?
Many scientists and science educators contend that a structured scientific method does not exist, while others might argue that the scientific method is too simplistic in its approach to scientific inquiry. This article addresses the dilemmas surrounding the scientific method, and provides suggestions that will enable you to ?meld the method with process skills.?
Author(s): Linda James,Scott B. Watson

Floor tiles
This Java applet enables students to develop tessellations, which are patterns on a plane that do not overlap. The student is given a square that can be distorted into quadrilateral shapes by dragging its corners. Users can select colors for the alternating quadrilateral pattern, and a button displays information about the quadrilateral in a second window. The window lists the coordinates of the vertices, angle measurements, side lengths, area, and perimeter of the quadrilateral. From the applet
Author(s): Shodor Education Foundation

Symmetry and Tessellations
This website provides 30 suggested activities in Symmetry and Tessellations using resources available across the World Wide Web. The author, Jill Britton, has complied this collection of links to coordinate with the chapters and activities from her publication, Investigating Patterns: Symmetry and Tessellations (Grades 5-8). The activities begin with What is Mathematics? and move on to cover topics such as Pythagoras? observations of music, patterns on Ukrainian Easter eggs, and tessellating art
Author(s): Creator not set

Examine the phases of the moon from Earth and space
This animation is designed to help Earth science students correlate the moon's phases with its orbit around the Earth. The introduction explains that, while the sun always illuminates one half of the moon, the moon's appearance depends on how much of the sunlit moon is facing the Earth. The split-screen animation includes two views of the moon: one from Earth and the other of the moon's orbit around the Earth. Students may toggle between an oblique view of the earth-moon system and a view from a
Author(s): TERC. Center for Earth and Space Science Education

Scope on Safety : Essential First Aid for Science Teachers
From a practical standpoint, science teachers should be trained to respond to incidents involving burns, bleeding, chemical exposure, swallowed poisons, penetrating objects, lacerations, and shock. Basic training is required to properly handle these situations, and this training should be reviewed annually. A list of possible lab incidents and the appropriate first-aid response is provided.
Author(s): Ken Roy

Ecological Footprint: The Role of Technology
In this two-minute sound segment, the director of the Sustainability Program for the public policy group Redefining Progress discusses the concept of ecological overshoot. He reminds us that today we use more than what nature can regenerate, and that as long as we use more, we are depleting the natural capital and liquidating our most essential assets. This site is from an archive of a daily radio program called Pulse of the Planet, which provides its listeners with a portrait of Planet Earth, t
Author(s): Creator not set

Image Tool
This activity allows the user to measure angles and explore the concept of scale as it pertains to maps, images, and drawings.
Author(s): The Shodor Education Foundation, Inc.

The students will collect solar system trading cards by playing an interactive card game. They will identify the sun, planets, comets, and asteroids by answering questions about them. By playing the game, students will gain knowledge about the solar system and they will view pictures taken by the Hubble Space Telescope and other NASA missions. Students will view an image accompanied by a question with three responses. By using the computer mouse, they will chose an answer. When the response is c
Author(s): Alex Storr,Amazing Space,Betty McCue,Connie Flower

Quick take on science-themed days and weeks
This one-page document highlights websites that focus on science-themed days and weeks such as Earth Day, World Ocean Day, and Earth Science Week.
Author(s): NSDL Middle School Portal

The SDA Kids Corner
The Soap and Detergent Association Kids Corner features some academic information regarding the history and chemistry of soaps and detergents, recycling plastic cleaning product bottles, environmentally smart ways of using and disposing of cleaning products, facts about environmental issues, and cleaning tips to help reduce the risk of foodborne illness. But what students will find most enjoyable is the section on bubbles. Bubble Recipes, Bubble Magic, The Pop-proof Bubble!, Bubblemania: Bubble
Author(s): Creator not set

Hot Colors- Windows into Hidden Worlds
This website contains an electronic field trip based on Yellowstone National Parks hot springs and the microorganisms living in them. The site includes a link for teachers providing an introduction, overview of concepts explored in the trip, lesson plans, and additional web links. The electronic field trip may be viewed in a low bandwidth version without downloading. For a high bandwith version of the field trip, Macromedia Flash Player is required and can be downloaded on site. Further informat
Author(s): Creator not set

Mysterious Journey
This ThinkQuest site concentrates on three of the world's major biomes: rain forest, grassland and desert. The site is divided into three parts according to the three biomes. In each part, the climate, location, animals, plants and human activities of the biome are presented. There is a treasure hunt game for encouraging students to take the initiative to learn about the three biomes. There is a search engine and links for further information. In addition, a discussion forum with controversial t
Author(s): Mr. P.L. Lau,Team Members,ThinkQuest

Sound Waves Underwater : True or False
This interactive quiz from the NOVA Web site features an array of interesting facts about the nature of sound underwater.
Author(s): Creator not set

Dancing Penny
This physical science activity was designed to engage students in thinking about the scientific principles involved in a teacher demonstration. In the demonstration, a coin resting in the opening of a bottle moves up and down when energy is transferred from a teacher's warm hands to the air inside the bottle. This conduction of heat increases the air temperature and pressure inside the bottle. The activity includes instructions for teachers, a materials list, science process skills used in the a
Author(s): Mid-continent Research for Education and Learning

Observe common objects made of minerals
This interactive Earth science resource lets students first see six images of minerals and then, by placing their cursor over each image, an image of an everyday object made from that mineral. Quartz, gypsum, and fluorite are among the minerals shown, with the corresponding familiar objects being glass, drywall (Sheetrock), and toothpaste. Copyright 2005 Eisenhower National Clearinghouse
Author(s): TERC. Center for Earth and Space Science Education

Interactive atmosphere lab
The ozone layer makes up an important part of our atmosphere. This informational activity, part of an interactive laboratory series for grades 8-12, explores changes in ozone concentration with altitude. Students view a diagram that shows the layers of the atmosphere with a temperature scale running from the surface of the Earth to the outermost reaches of the atmosphere. After reading introductory material, students are presented with nine questions about the layers of the atmosphere and intera
Author(s): University of Utah. Astrophysics Science Project I

Graphing for Area
Middle School, difficulty level 2. Graph six points and find the area of the resulting hexagon.
Author(s): Math Forum,Judy Ann Brown

National Oceanic and Atmospheric Administration : Research Homepage
National Oceanic and Atmospheric Administration (NOAA) Research, conducted primarily through the NOAA Office of Oceanic and Atmospheric Research, drives the NOAA environmental products and services that protect life and property and promote sustainable economic growth. Research, conducted by in-house laboratories and by extramural programs, focuses on enhancing understanding of the environmental phenomena such as tornadoes, hurricanes, climate variability, solar flares, changes in the ozone, El
Author(s): Creator not set

Science and Technology
The goal of engineering is to solve practical problems through the development or use of technologies. Technology/engineering works in conjunction with science to expand our capacity to understand the world.
Author(s): K-12 Outreach,