CK-12 Foundation
CK-12 Earth Science Concepts for Middle School
Explore a variety of science concepts in an interactive textbook created for middle school scholars. A lengthy table of contents takes readers to pages comprised of a subject overview, outline, and summary. Follow links further to find...
CK-12 Foundation
Ck 12: Third Grade Science
[Free Registration/Login may be required to access all resource tools.] This is a science text for Grade 3. It has sections on physical science, earth science, and life science. Each of those is broken down into 3 to 5 topics.
CK-12 Foundation
Ck 12: Fourth Grade Science
[Free Registration/Login may be required to access all resource tools.] This is a science text for Grade 4. It has sections on physical science, earth science, and life science. Each of those is broken down into eleven or twelve topics.
CK-12 Foundation
Ck 12: Fifth Grade Science
[Free Registration/Login may be required to access all resource tools.] This is a science text for Grade 5. It has sections on physical science, earth science, and life science. The first two are broken down into eleven topics each, and...
CK-12 Foundation
Ck 12: Second Grade Science
[Free Registration/Login may be required to access all resource tools.] This is a science text for Grade 2. Section titles include: A World of Ice and Water, Changes, Earthquakes, The Grand Canyon, Mountains, Preventing Erosion, Tidal...
CK-12 Foundation
Ck 12: First Grade Science
[Free Registration/Login may be required to access all resource tools.] A science text for Grade 1. Section titles include: Me and My Shadow, How Do I See, My Features Can Help Me, Signals Light and Sound, Sky Patterns, Telescopes, The...
Other
Cavalcade O'chemistry: Chemistry: The Awesomest Science
A free online textbook written by a chemistry teacher trying to create a better chemistry textbook. Site also includes tutorials and worksheets for students. Teachers will also find a teacher resource center that compliments the textbook.
Other
Chicago Science Group: Earth's Changing Surface Virtual Field Trip
Join Science Companion author Belinda Basca and her family as they explore the land forms in Hawaii from a helicopter! Includes suggestions for teacher lessons, student activities, and web resources.
PBS
Pbs Learning Media: Pulsars: Little Green Men
The story behind Jocelyn Bell's role in the discovery of pulsars is told in this colorful, comic-book-style resource from A Science Odyssey Web site.
Globe
The Globe Program: Descubrimientos en Arroyo Roble [Pdf]
In Spanish. An online book about a science club's visit to a local stream and what they discover there. Includes notes for teacher. Requires Adobe Reader [PDF].