Students observe how water acts differently when placed on hydrophilic and hydrophobic surfaces. They determine which coatings are best to cause surfaces to shed water quickly or reduce the "fogging" caused by condensation.

This article highlights resources that can be used to supplement lessons on extreme weather, including games and video clips. The article appears in the free, online magazine for K-Grade 5 teachers Beyond Weather and the Water Cycle. The magazine focuses on the essential principles of climate science.

In this activity, students conduct an investigation to purify water. They engineer a method for cleaning water, discover the most effective way to filter water, and practice conducting a scientific experiment. Through this activity and its associated lesson, student teams follow the steps of the engineering design process related to water treatment, as done by practicing engineers, including constructing and testing their designs.

In a very hands-on activity, students observe and feel the differences between two cleaning methods, with and without hand soap, using coffee grounds to represent "dirt."Most of the dirt and bacteria on our hands is encased in a thin layer of oil, so because of the properties of oil and water, cleaning your hands with water alone has little effect when trying to remove the dirt. This activity demonstrates the importance of using a surfactant, such as hand soap, when washing your hands.

At this website, read the full text of Lewis Carroll's "Through the Looking Glass," which is the sequel to his "Alice's Adventures in Wonderland." Includes a brief paragraph introducing the text, its memorable characters, and symbolic significance.

A watershed and its features are very important parts of a region's water supply system. It can also be a powerful predictor of the quality of life in this region. This segment of a WPSU documentary Liquid Assets describes how a watershed is formed.

Students are introduced to the structure, function and purpose of locks and dams, which involves an introduction to Pascal's law, water pressure and gravity.

Students use everyday building materials sand, pea gravel, cement and water to create and test pervious pavement. They learn what materials make up a traditional, impervious concrete mix and how pervious pavement mixes differ. Groups are challenged to create their own pervious pavement mixes, experimenting with material ratios to evaluate how infiltration rates change with different mix combinations.

Students leach organic matter from soil to create a water sample with high dissolved organic matter content (DOM), and then make filters to see if the DOM can be removed. They experience the difficulties of removing DOM from water, and learn about other processes that might make DOM removal more effective.

Students observe capillary action in glass tubes of varying sizes. Then they use the capillary action to calculate the surface tension in each tube. They find the average surface tensions and calculate the statistical errors.

This formative assessment item uncovers student ideas and misconceptions about melting icebergs. It determines if students believe that water levels will rise due to melting icebergs. Resources provided will assist teachers. It gives instructional support as well as information for teachers. This probe is aligned to National Science Education Standards (NSES).

This site is full of information and activities to help learn about the Florida Everglades, a unique wetland environment, and its future.

NASA has discovered water in space. This interactive resource allows you to examine the different planets and moons in our solar system to find out where their water is located.

This site offers definitions of the many and varied terms used to describe tides and currents.

This video features the mission of the Phoenix Mars Lander and what it discovered. With behind-the-scenes access, NOVA scienceNOW covers the Mars lander Phoenix's thrilling descent to the martian surface and its critical early days of operations. Phoenix will digs into the permafrost to obtain samples of martian dirt and ice for analysis in onboard labs, seeking any evidence that the Red Planet might once have sustained microbial life -- or perhaps still does. [52:20]

PBS discusses how floods can be beneficial to farmers as it helps increase the harvest.

Student teams learn how water filtration systems that use nanoparticles and nanotechnology can remove organic compounds from water. First they learn about the role nanoparticles play in water filtration. Then they are introduced to the basics of nanoparticles and nanotechnology, focusing on the impacts and benefits this innovative technology has on our daily lives. Using methylene blue and methyl orange solutions, students test for the efficiency of photocatalytic nanoparticles to sanitize water. They expose a solution sample of water and methyl orange (the microbe indicator) with their newly-made water sanitation filters under UV light (sunlight) to activate the photocatalytic properties of three specific nanoparticles. They visually compare them with control samples to determine the best photocatalytic nanoparticle to sanitize water.

Learn about the atmosphere, it's make-up, the layers, the hydrologic cycle and more. The National Weather Service presents this site, including learning lessons and review questions.