In SciLinks, as the webwatchers review new sites, each site is correlated to a specific keyword (such as Food Chains, Phases of the Moon, or Magnetic Fields). But sometimes, we run into collections of activities that include a broad spectrum of science-related topics. Although many of the individual activities are aligned with specific SciLinks keywords and are included in the database, the entire collection may be of interest.
These are not simply a list of someone’s favorite sites or activities. These are activities, simulations, and resources created by organizations or institutions as part of an outreach program or related to their projects and research. You can search the sites by grade level and subject area. Here are some examples of these collections:

From the Teachers’ Domain site you can access hundreds of individual multimedia resources (video clips, photographs, audio files, animations, PDF documents) from WGBH/PBS programming. Most of these resources have a generous use policy. All of them can be used online, most can be downloaded, and many can be shared or added to your own presentations. The site also has a set of K–12 lesson plans that integrate these resources.
The Molecular Workbench has many interactive simulations and includes topics in science and engineering. Use the “Software” link to download the software and get a list of available simulations. The “Curriculum” link leads to a database of lesson plans that use the simulation. The lesson plans include objectives, key concepts, and correlations to popular textbook chapters.
Use the Vision Learning Library to find modules on a variety of topics in biology, chemistry, physics, and science processes. Each module, written by an expert, includes text, graphics, animations, and a quiz. You can register (free) to create your own classroom space on the site. The library is also available in Spanish.
Explore has on-line exhibits, lesson plans, and information from the Exploratorium Museum. There are activities for students of all ages and resources for classroom implementation.
Cool Science from the Howard Hughes Medical Institute has virtual labs, videos, and “BioInteractives” with in-depth investigations and information.
With Smithsonian Educators you can search the collections of the “nation’s attic” for resources and lessons. You can even enter one of your state standards and get resources related to it.
You can search the index of PhET simulations by science content area or by grade level. Each animated simulation has teaching ideas and could be used by individuals or small groups or projected to a whole class.
If your students are interested in photography, here are themed galleries of high-quality pictures and tips for taking digital photographs from National Geographic Photography.
Paso Partners: Integrating Mathematics, Science, and Language includes lessons can be used in classes with young English language learners in grades K–3. The topics include life science, health, earth science, and physical science. The resources are available in both English and Spanish and include vocabulary lists, graphic organizers, activities, and assessment ideas.
NIH Curriculum Supplements for high school, middle school, and elementary grades are lessons and activities that help students understand the science behind health topics such as bioethics, genetics, and the brain.