Science-earth

http://www.learner.org/exhibits/volcanoes/entry.html

This is an excellent source. There are several options listed at the bottom of the page, so be sure to go to the bottom and follow the buttons in order. Most of these have a video included.
 
 

http://atozteacherstuff.com/lessons/Erosion.shtml

This is a lesson plan for teachers. The activity directly concerns erosion. There are links to other sites.
 
 

Science-animals

http://www.exploratorium.edu/frogs/

There are many interesting facts with a variety of links to other pages

http://frogwebsite.com/

There are links to other animals as well at this site.
 
 

Science-general topics

http://features.LearningKingdom.com/fact/

This is a super site for a variety of information.

There is a Question of the Day and links to sites providing a great deal of more information. It seems to cover a wide range of topics.
 
 

Science-plants

http://tqjunior.thinkquest.org/3715/index.html

This is an excellent site for plants, etc.
 
 

http://teacher.scholastic.com/lessonrepro/reproducibles/instructor/crossword/0105/index.htm

Crossword puzzle on plants. Permission to make copies, but students can click links for more information. .

Science-weather

http://teacher.scholastic.com/activities/wwatch/hurricanes/index.htm

Information for understanding and tracking, even a map to be printed. It also includes links to tornado information.
 
 

Reading & Social Studies

http://www.randomhouse.com/BB/teachers/tgs/harriet.html

A guide to Harriet Tubman, includes study guide and questions.
 
 
 
 

Art-lesson plans for teachers
 
 

http://www.dickblick.com/lessonplans/lessonplans/#bugs

This is an excellent source for teachers to get complete lesson plans for a variety of art projects. There are completed projects to view.
 
 
 
 

Science-Machines

http://atozteacherstuff.com/lessons/SimpleMachines.shtml

This is a series of plans for lessons about simple machines. It is probably good for preparing for ISATS