Curated OER
Water Filtration
Students demonstrate the four of five procedures that municipal water plants use to purify water for drinking. A water filtration system is designed by a student and their partner. A data chart is made to record all observations when the...
Pingry School
Effect of Solutes on Boiling Point
Anyone that lives around snow knows that adding salts to water increases its melting point. Are there solutes that affect the boiling point as well? A scientific experiment has learners add different solutes to water and then monitor the...
Curated OER
So Much Water, So Little to Drink
Learners explore salt and fresh water. In this water lesson plan, students investigate the amount of Earth covered by water. Learners compare the amounts of salt water to fresh water. Students create a visual representation to aid...
American Chemical Society
Changing State: Freezing
There are five types of frost: ground frost, air frost, hoar frost, glaze, and rime. Scholars mix ice and salt in a metal container to observe frost forming on the outside of the can. Animations and videos enhance the learning.
Centers for Ocean Sciences
Ocean and Great Lakes Literacy: Principle 1
Is your current lesson plan for salt and freshwater literacy leaving you high and dry? If so, dive into part one of a seven-part series that explores the physical features of Earth's salt and freshwater sources. Junior hydrologists...
Curated OER
Sea Water Freeze
Middle schoolers observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water
Curated OER
Exploring Density with Salt and Fresh Water: Part 5
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...
Curated OER
Liquid Rainbow
Young scholars develop their own techniques for drawing a small sample of solutions into a straw. They hypothesize ways to increase the density of water, and discuss how salt-free rainwater tends to float on top of salty seawater.
K12 Reader
Water Water Everywhere
The protection of our water supply is the subject of an article used in this cross-curricular reading comprehension worksheet. After studying the passage, readers use information from the text to respond to a series of comprehension...
Curated OER
Point- vs. Non-point Pollution
Learners differentiate between point and non-point pollution and determine how the different types of pollution are harmful to aquatic ecosystems. They complete a series of tests on a sample of "polluted" water and a sample of "pure" water.
Curated OER
Building A Solar Still
Students investigate the water cycle by viewing an online video. In this drinking water lesson, students create solar stills at their campus in order to purify water that is tainted. Students view a video on their computers about...
Curated OER
How Soluble Is It?
Is sugar more soluble than salt? Experiment with water and solubility with an elementary science activity. After interpreting data from a bar chart, fifth graders use different types of sugar to determine if the size of sugar particles...
Curated OER
Salt Marshes And Their Inhabitants
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...
Curated OER
How to Build a Salt-Dough Volcano
Young scholars build a salt dough volcano. They the salt dough using the following ingredients: flour, salt, and water. Students mix flour and salt in a container and add water and mix until the dough is smooth. They then make the...
Curated OER
Water Words Puzzle
In this water worksheet, students fill in the blanks to a crossword puzzle having to do with water words. Students complete 25 blanks in the crossword.
Curated OER
Properties of Fresh and Sea Water
Students work with three stations to demonstrate the properties of water. They explore water's boiling point, freezing point, and its ability to store heat.
Polar Trec
Is There Salt in a Glacier?
What can conductivity tell us about a glacier? Groups analyze glacial melt to determine salt content through an analysis of the pH and conductivity measurements of two samples. Groups then determine the source of the salts.
San Francisco Public Utilities Commission
Desalination: Turning Salt Water into Fresh Water
How does San Francisco supply its citizens with enough water, even during a drought? Learn about reservoirs and why desalination could be a good solution with a reading passage about water conservation. After kids finish the...
Curated OER
The Relationship Between Salinity and the Density of Water
Students investigate density and salinity of water. In this density and salinity lesson plan, students find the density of objects and liquids and show the relationship between the salinity and density of water. Students add salt to...
Curated OER
Water Quality Tests Explained
Students identify the eight tests done to check for water quality. In this ecology lesson, students explain why it's important to test water in rivers. They explore sources of river water pollution.
Curated OER
How Dense is Salt Water?
Young schoolers explore the concept of linear regression. They determine the mass and density of salt water. Pupils add salt to water and record the density as salinity increases, and perform a linear regression on the data to model the...
Curated OER
The Preparation of Teraamminecopper(II) Sulphate-1-water
In this complex salt worksheet, students create teraamminecopper(II)sulphate-1-water using copper(II)sulphate, concentrated ammonia and ethanol. Students determine the formula mass for their product, the theoretical yield of the product...
Curated OER
One World Ocean
Students 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 with...
Curated OER
The Weight of Water
Students examine how salt water is more dense than fresh water. They discuss how manatees need to float and sink, conduct a sink or float experiment, and conduct an experiment with eggs and salt and fresh water.