Users can read and view pictures that explain the three phases (solid, liquid, and gas) in which water exists. An activity that illustrates water vapor in one's breath and a brief explanation of what phase changes are and what triggers them is also included. Full description.

Become an amateur meteorologist by building your own weather station and keeping a record of your measurements. Older students can independently follow instructions on how to build five different instruments (barometer, hygrometer, rain gauge, weather vane, and compass). Younger students will need adult supervision with hammer and nails. Full description.

Loaded with activities and interesting water facts, this site provides hands on projects and games for every learning style. It is perfect for grades 2-4, and very easy to navigate. Full description.

This is the site of a not for profit educational initiative. The site strives to promote competency in literacy and mathematics using lessons that focus on an aquaculture themes. These lessons include Understanding Percents (through the management of classroom fish), Equivalent Fractions (use food-coloring, sugar, and a dissolved oxygen tests to determine concentrations), and Japanese Garden (where ... Full description.

This standards-based module uses hands-on activities and real-time data investigations to allow students in the elementary grades to investigate weather phenomena both locally as well as in other places around the world. By using hands-on activities and real-time data investigations, the students will develop a basic understanding of how weather can be described in measurable quantities, such as temperature, ... Full description.