Students complete activities where they observe the amount of freshwater in the world as a fraction of the actual amount of water using different mixtures. In this freshwater lesson plan, students brainstorm on how to preserve...

After a whole-class discussion of water reservoirs, ten liters of water are given to each lab group to represent Earth's total amount of water. They divide the water into smaller containers, each representing one of those reservoirs. The...

Challenge your sixth graders with this instructional activity about the freezing and boiling points of water. In these activities learners graph temperature data, read and analyze information, and identify the freezing and boiling points...

As an anticipatory set, biologists listen to the story of Ruth Patrick, a scientist who used algae to detect water quality. They observe a demonstration of osmosis and diffusion. In their lab groups, they place Elodea stalks in...

Ninth graders conduct research on the subject of sea water. They use a variety of resources to obtain information. There are helpful resource links listed in the lesson. In conjunction with the research students make inquiry of the...

Students discuss the salt marsh. They define the following terms: habitat, water, land and air. Students work in small groups. They are asked why are they going to a salt marsh? Students discuss whose habitat is it at the salt marsh.

Fourth in a set of several little lessons on density, this one compares the density of fresh and salt water. First by demonstration, and then by a hands-on activity, learners find that adding salt increases the density, as is evidenced...

Students investigate the ecosystem of the salt marshes. This is done in order to develop an appreciation for this type of environment. They conduct research using a variety of resources. Students are given samples of different organisms...

This particular lesson was written by the National Earth Science Teachers Association, but density is a concept that you can teach at the beginning of the school year in your life, physical, or earth science classes. It would be fun to...

Eighth graders study the concepts of acids, bases, salts and neutralization. They discuss steam adoption program, acid rain and other ecological implications. They use indicators to obtain pH values of household chemicals and to...

Students list reasons why water is important and investigate and graph the freezing points of different solutions.

Students explore the natural distallation process that occurs in the water cycle. They use plastic cups and cotton swabs to observe the condensation process that is evident in the water cycle.

Students view a video of the water cycle, and make a water cycle baggie. In this water cycle lesson plan, students watch a video, discuss vocabulary, and make a water cycle baggie out of water, salt, ice, and a hot plate.

Students discuss water pollution and the Safe Drinking Water Act of 1974 after watching a teacher demonstration in which different contaminants are added to tap water. While some contaminants are not harmful to the body, in excess they...

Young scholars compare and contrast the properties of salt water in the oceans/seas and freshwater elsewhere on the planet. They also analyze mixing caused by currents in the ocean, including the effects of warm and cold water as well as...

Students explore how fish are able to move easily from one depth to another in water.  In this fish activity students create their own balloon fish. 

How is it possible for ocean water to have layers? The sixth installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program investigates factors that cause different water densities to occur. Experiments...

In this hydrated salt worksheet, young scholars answer questions after completing a lab experiment using a hydrated salt. The calculate the empirical formula for the hydrate, they name the hydrate and they determine the mass of the water...

Students examine relationships and interactions between different types of water. They experiment with colored water of different temperature and salinity and discuss how the results relate to real ocean currents.

Students observe how different water densities and salinity control the depth at which different water masses occur. Submarines are used as a case study. This is a well-designed with an excellent worksheet.

Students manipulate Hudson River salt front data from October 2004 - September 2005 to locate the high and low points of the salt front for each month, They determine the range for each month, determine the modal range for each month,...

Students engage in a lesson plan that is concerned with the concept of water chemistry. They conduct research using a variety of resources. Students also consider an experiment to observe how water has the abiility to exist as three...

Why are the properties of the water important when exploring the ocean? Young scientists discover the tools and technology used in deep sea exploration in the fourth installment in a five-part series. Groups work together to...

High schoolers discuss the difference between concentration and solubility as well as examine the difference in a hands-on activity. Using water and table salt, they experiment with solubility. They create different concentrations using...