Students are introduced to the fundamentals of environmental engineering as well as the global air, land and water quality concerns facing today's environmental engineers. After a lesson and activity to introduce environmental...

Students learn the chemical make-up and pH of urine in the human body.

This resource, which is provided for by NASA, gives great information on protecting your eyes during solar eclipses. Your eyes are very difficult to replace. Even when 99% of the Sun's surface is obscured during the partial phases of a...

There are different ways to separate mixtures, for example by filtration, crystallization, distillation, or chromatography. The method chosen depends upon the type of mixture.

Discusses many options of water treatment, the contaminants that the treatments are focused on, how the treatment works, and common treatment systems.

PBS and the Online NewsHour have created this multimedia website about water recycling. You can see how this process is different than other waste water treatments by reading interviews, watching a slideshow or investigating a map of...

Student teams practice water quality analysis through turbidity measurement and coliform bacteria counts. They use information about water treatment processes to design prototype small-scale water treatment systems and test the influent...

Students learn about water quality testing and basic water treatment processes and technology options. Biological, physical and chemical treatment processes are addressed, as well as physical and biological water quality testing,...

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will define a mixture and understand why mixtures are different than pure substances. They will classify mixtures as homogeneous or...

Fourth graders create a model that effectively filters water as it passes through the groundwater system.

An article and resources for research and teaching that explains how technologies are being used to desalinate ocean waters to be used for various municipal, industrial, and domestic purposes including a means to provide fresh water to...

Explains the distinction between the two main types of chromatography - analytical and preparative - and describes eleven chromatography techniques.

Kids learn about separating mixtures in chemistry including separation processes such as filtration, distillation, and the centrifuge.

Assess your knowledge of mixtures and compounds and your ability to identify real-world examples with this interactive multiple choice quiz. Immediate feedback is provided.

For this lesson plan, students use different types of filters to separate the mixture. This lab requires the students to use engineering skills to solve a real-world problem of filtering water.

This passage will test your knowledge on fluids in motion.

Explore these resources to learn more about the natural and engineered processes that can help contribute to improved water quality.

Here are some general tips for maintaining good indoor air quality in homes.

Pupils will investigate how different materials filter water and learn about water treatment.

The basics of filter feeding.

Explains what a homogeneous mixture is, gives examples, and discusses some ways used to separate homogeneous mixtures.

Learn about ten different methods of separation of substances.