An experiment where students test how the boiling point of water is affected by adding salt. The experiment is well laid out with pictures that show how to perform the experiment.

Students use a thermal process approach to design, build and test a small-scale desalination plant that is capable of significantly removing the salt content from a saltwater solution. Students use a saltwater circuit to test the...

Students use conductivity meters to measure various salt and water solutions, as indicated by the number of LEDs (light emitting diodes) that illuminate on the meter. Students create calibration curves using known amounts of table salt...

In this experiment, students are asked to collect data in order to prepare a calibration curve showing the relationship between the percentage of salt and the mass of salt water. Using this graph, students will be able to determine the...

[Free Registration/Login Required] While paying attention to the charges, move the salt ions and water molecules around to simulate how salt ions are dissolved in water.

Students are challenged to search for and find plants and animals that live in a mangrove forest.

Demonstrate surface tension by sprinkling pepper on a bowl full of water, then touching a soapy finger to the water.

Students explore materials engineering by modifying the material properties of water. Specifically, they use salt to lower the freezing point of water and test it by making ice cream. Using either a simple thermometer or a mechatronic...

What do you know about salt? In this chemistry instructional activity, students will learn different things about salt: the chemical name, it's periodic table number, it's shape under the microscope, how it dissolves in water, and how to...

In this chemistry lab, students investigate whether water molecules have any space between them by filling a glass with water, and adding salt without the water overflowing. They will also experiment with the temperature of the water.

Students will observe how equilibrium is reached when salt is added to water.

in this activity, students calculate the molar enthalpy of dissolving for three ionic solids, and use this information to design a cold pack. In this experiment they measure the heat changes which occur from various salts dissolving in...

[Free Registration/Login may be required to access all resource tools.] Aquatic biomes can be generally classified based on the amount of salt in the water. Freshwater biomes have less than 1% salt and are typical of ponds and lakes,...

How are the Atlantic and Pacific oceans different? At this site from the Missouri Botanical Garden you can click on the "Atlantic and Pacific Oceans," link to learn all about this topic. Study the two animated illustrations given to...

Students will identify factors that affect the solubility of a salt and test one of the factors (temperature). They will apply their experience to ocean salinity, the effects of temperature on the composition of ocean water, and what...

In this activity, Students can use an EasyTemp temperature probe to determine the normal melting temperature of ice. They will then study how the addition of salt to the melting ice affects its melting temperature. They will finally...

A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the effect of an ionic solute upon the freezing point of water. Shows apparatus and set-up; provides...

Describes the properties of seawater and the variations depending on its location, e.g., near a shoreline, in an estuary, or as sea ice. Discusses the instruments scientists use to measure the density of water and explains other...

The constant motion of our oceans represents a vast and complicated system involving many different drivers. Sasha Wright explains the physics behind one of those drivers- the concentration gradient- and illustrates how our oceans are...

Students build a saltwater circuit, which is an electrical circuit that uses saltwater as part of the circuit. Students investigate the conductivity of saltwater, and develop an understanding of how the amount of salt in a solution...

This is a simple overview of electrolytes and their function when it come to your health. Learn why electrolytes are important, how they are lost during sports and physical activity, how they are replaced by foods, when electrolyte...

Vivid descriptions on the life cycle of brine shrimp and ecology within the Great Salt Lake.

[Free Registration/Login Required] Ever wondered what happens at the molecular/ionic level when salt is dissolved in water or salt-water is evaporated by heating/boiling? Peek into the molecular world with this flipchart to view these...

An experiment to test what happens to water when salt or sugar is added and it is then frozen into ice cubes. Students also explore the ice's physical properties by rubbing cubes on sandpaper and dropping a heavy object on each type.