This resource provides detailed information about turtles and toroises, as well as several pictures and an audio clip.

Welcome to Smithsonian Open Access, where you can download, share, and reuse millions of the Smithsonian’s images—right now, without asking. With new platforms and tools, you have easier access to nearly 3 million 2D and 3D digital items from our collections—with many more to come. This includes images and data from across the Smithsonian’s 19 museums, nine research centers, libraries, archives, and the National Zoo.

Lesson plan which helps students understand the impact of the literary element of style on a piece of writing. Students read and analyze the works of Ernest Hemingway and Nathaniel Hawthorne. L.11-12.3 Language Functions/Style, L.11-12.4, 4a, & 4d Word Meanings, L.11-12.5a Figures of Speech, L.11-12.5 Fig Lang, Nuance, Relationships, L.11-12. 6 Vocabulary

Learn all about gemstones at this site. Here you can view gem images and read the very detailed descriptions and general information facts pertaining to select gems.

This is an informative site from Georgia State University. It gives a discussion of the thin lens equation and an illustration of its use in determining the image distance based upon the object distance and the focal length.

Teachers can download this teaching package that looks at light and symmetry through the use of mirrors. Students will enjoy the nine mirror challenges, along with the hands-on activities described in the lessons. Teachers will appreciate the student handouts provided, as well as the list of resources.

This interdisciplinary project on birthstones, provided by the International Society for Technology in Education (ISTE), focuses on research skills, writing skills, and the ability to put together an electronic presentation.

A collection of articles, games, printouts, facts, science fair ideas, and links through which students learn about the history and science of earthquakes and also explore what it takes to be an "earthquake scientist."

Windows to the Universe offers information on the Earth's atmosphere. The site contains links to a weather crossword puzzle and images.

This interactive website, ideal for young students and visual learners, addresses the causes and treatments of phenylketonuria through a series of images, animation, and brief explanations. Included is a glossary of terms and links to detailed textbook articles which explain concepts briefly described in the website.