Third Grade Links

Many of the web sites listed below will be used in class.  Other sites have been provided to help students further their discoveries or to practice various skills. 

Author Websites


Links on Photography

Information about the camera obscura and early photography.

Has links to 12 photo related sites:

History of cameras- this is written at a high reading level:

More about the camera obscura-may be difficult to read:

Site from a PBS series about the history of American Photography and the role the camera has played in capturing history.

Links to many sites with information about cameras:

Pictures and information about 100 old cameras:

Site on the history of photography and the camera:


Links on Yahooligans to information on Sounds:

Rocks and Minerals

 United States Geological Services:

Ask a geologist:  Do you have a question about volcanoes, earthquakes, mountains, rocks, maps, ground water, lakes, or rivers?  You can email earth science questions at this site.

This site is for kids of all ages who love rocks. Here you will find out stuff about rocks & minerals and where to go to find out more.  Also has pictures and descriptions to help identify different rocks and minerals.

 Has animations that show how igneous, sedimentary, and metamorphic rocks are formed.

 Explains the difference between rocks and minerals.  Great additional information about different rocks and minerals.

Information about starting a rock collection:

Rocks and minerals information-more complicated.

Explains the hardness scale:

links to pictures and descriptions of rocks and minerals:

Canada’s Earth Science web-magazine for schools, beginners, and educators.  Also has information on fossils.

On-line geology word find:

Movie that explains how rocks are formed:

High School Earth Science: Rocks and Rock Collections - link was given to us by Ms. McKnight's class, thanks!



Water Links

Links to a lot of information about water:

Water science for schools:

Water cycle:

Information about groundwater:


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