Students observe, record, and organize the movement of objects in both daytime and nighttime skies. Applicable for grades K-4. This unit can be used for upper elementary through to high school students, and is absolutely packed with information and resources. Great site to use in the classroom. Brain Pop -a Health, Science, and Technology site with many different topics.
Interactive exhibits make science fun.
Engaging multimedia articles and activities make Science U a great place to learn about science. This site provides excellent lessons and programs, with fact sheets and projects to build a volcano. Be sure to check out the A-Z activity index.