Curated OER
Observing the Growth Spurt
Learners notice a growth spurt in their Brassica plants and closely monitor this growth by measuring their plants and predicting the next day's growth based on the pattern of their data. They also read and highlight the objectives in...
Curated OER
Harvesting and Threshing the Seed
Students harvest and thresh the seeds. They count the seeds and compare that number with the original number of seeds planted (8) to determine their profit or loss. Finally, students think about additional questions they have about...
Curated OER
Construct with Solids
Students discover which properties of solids lend themselves to building a tower through hands on trial and error and observation of others as they are building. They write down the steps it took them to build the tower and label an...
Curated OER
Addendum to the Written Curriculum: Measuring Solids
Students use standard rulers to measure the length of common classroom items - such as pencils, books, desk tops - in inches and centimeters, and measure weight in pounds. They also answer math questions, such as "How long is the front...
Curated OER
Solids in Bottles
Students use funnels to put the five solid materials into clear bottles with caps. They observe how the particulate materials look, sound, and move when they shake and roll the bottle. Finally, students write "sound and touch" poetry.
Curated OER
What's an Ecotect?
Students develop creative thinking skills that will help them in future jobs. In this investigative activity students select from a list of job titles, get into groups and make up job descriptions for them.
Curated OER
New Breed of Robots Takes War To the Next Level
Students study an article and answer questions. In this exploring robots lesson students read an article on military robots and answer questions.
Curated OER
Soil Slope
High schoolers study how to measure the soil slope of an area. In this soil lesson students work in groups and complete an activity that allows them to find the slope of a given area.
National Cancer Institute at the National Institutes of Health
Cancer.gov: Lasers in Cancer Treatment
This site discusses the different uses for lasers in medicine. It provides specific details on the uses of lasers in treating cancer. Also contains links to definitions of many of the terms used througout the site.
NASA
Nasa: The Space Place: What Is a Laser?
NASA resource explores what a laser is as well as how it works. Animations are provided that offer excellent examples of how different light travels.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Lasers
Learn about absorption and emission by creating a laser. Pump the chamber with a photon beam, and manipulate the energy states of the laser's atoms to control its output.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Lasers
Create a laser by pumping the chamber with a photon beam. Manage the energy states of the laser's atoms to control its output.
Kansas State
The Laser Adventure
Kansas State University site explaining all aspects of LASERS. The site is set up as an online book with clickable chapters.
TeachEngineering
Teach Engineering: Lasers, Let's Find 'Em!
Students research particular types of lasers and find examples of how they are used in technology today. Teams present their findings by means of PowerPoint presentations, videos or brochures. The class takes notes on the presentations...
TeachEngineering
Teach Engineering: Laser Types and Uses
Through two classroom demos, students are introduced to the basic properties of lasers through various mediums. In the Making an Electric Pickle demonstration, students see how cellular tissue is able to conduct electricity, and how this...
Smithsonian Institution
Lemelson Center: The Laser Turns 50
Follow the development of the laser from its earliest times to its many present day uses and forms.
PC Technology Guide
Pc Tech Guide: Laser Printers
An informative document about laser printers. Includes communication, operation, and illustration.
PBS
Pbs Learning Media: Laser Waterfall
In this video from the Encyclopedia of Physics Demonstrations, students will observe how a laser beam is trapped in a water jet because the light reflects against the surface of the water. [1:03]
Science Buddies
Science Buddies: Using a Laser to Measure the Speed of Light in Jello
Think it takes expensive, sophisticated equipment to measure the speed of light? Think again. Outfit yourself with a simple handheld laser pointer, a protractor, and Jell-O, and you're ready to get started.
Science Buddies
Science Buddies: Using Laser Pointer to Measure Data Track Spacing on C Ds, Dv Ds
You've probably noticed the colorful patterns "reflecting" from the shiny surface of a CD disk. What you are seeing is actually diffraction of white light, and the rainbows of color are diffraction patterns. In this project you'll learn...
University of Oxford (UK)
University of Oxford: Easy Laser Physics
This is a site which explains the inner workings of Lasers. The site is detailed in its explanations but is easily understood at the junior and senior high school level.
University of Colorado
University of Colorado: Physics 2000: Lasers
If you want to know how atoms and photons work together to make lasers this site has great explanations. There are interactive applets to help you really understand the concepts!
Symmetry Magazine
Symmetry Magazine: Explain It in 60 Seconds: X Ray Lasers
X-ray lasers are produced by electron beams and are extremely intense,. They have important applications in particle physics. "Explain It In 60 Seconds" is an article series that aims to summarize in a few paragraphs the meaning of...
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