Curated OER
Amazing Salt
Learners examine the effects of salt on ice. For this salt lesson, students observe what happens to the temperature of ice when salt is added, then make ice cream to see how this knowledge can be used.
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Find the Percent of Iron in Manganate (VII)
Dilute sulphuric acid is used to oxidize manganate (VII) into manganese (II) and water. Step-by-step procedures are outlined on the worksheet as well as calculations for junior chemists to perform in their science journals. This...
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What is in the Water?
For this mixtures worksheet, high schoolers read about mixture and what determines if a solute dissolves in a solvent. They answer three questions about solutions and determine from a list of compounds which are soluble in water.
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Sea Water Freeze
Learners 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
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Liquid Rainbow
Students 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.
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Observation Milk Fat Lesson
Turn your class loose to experiment with the different fat content in skim milk, whole milk, half and half, and heavy cream. This is a visually vibrant experiment, as learners drip food coloring on the surface of the products and measure...
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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.
American Chemical Society
Solubility Test
Make sure to consult the teacher's handbook, Inquiry in Action - Investigating Matter Through Inquiry, for two demonstrations that can be done to introduce solubility and measuring crystal mass before having the class conduct this...
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The Effect of Temperature on Solubility
In this solubility worksheet, students conduct an experiment to see how temperature effects the solubility of salt in water. Students record their data in a chart and then graph the results. Then students complete 2 short answer questions.
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Water - the (Nearly) Universal Solvent
In this water worksheet, high schoolers explore the reasons why water is considered a universal solvent. Students compare different ways to change the dissolving rate of a solute. This worksheet has 11 fill in the blank and 8 matching...
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"I'm Melting!"
Third and fourth graders engage with a worksheet designed to help them differentiate between melting and dissolving. After reading an informative paragraph about the two actions, they consider four scenarios, and choose whether they...
Polar Trec
Sea Ice Impact
The arctic seas contain currents that are both warm (with high salinity) and cold (relatively fresh water) that circulate throughout the year. Through discussion, a lab, and a web quest, participants explore the impacts of melting and...
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Quiz on pH, Acids, Bases, Alkalis, Neutralisation and Salts
In this chemistry worksheet, students complete 5 multiple choice questions by selecting the correct answer from the drop down box.
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Salty Solutions
Students measure salt content in water. They determine salt content of four samples using a hydrometer.
Curated OER
Water - the (Nearly) Universal Solvent
In this solvent worksheet, students explore why water is considered a universal solvent. Students explore what can change dissolving rates. This worksheet has 8 matching, 3 short answer, 11 fill in the blank, and 4 problems to solve.
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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.
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Sea Water Mixing and Sinking
Students investigate the role of temperature and salinity in determining seawater density. They use a Temperature-Salinity Diagram to examine the effects of mixing on density.
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Acids and Alkalis
This PowerPoint progresses slide-by-slide through all the facts you would want to deliver about acids, alkalis, salts, and the related lab tests. Each slide has one or two facts about a physical or chemical property or behavior. The...
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Brain POP - Water
In this properties of water worksheet, learners complete 11 fill in the blank and 5 matching questions about surface tension, water hardness and water trivia.
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Condensation and the Water Cycle
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.
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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.
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The Preparation of Teraamminecopper(II) Sulphate-1-water
In this complex salt learning exercise, 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...
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Salinity in Mill Creek
Fifth graders use water samples collected at three different locations of Utah's Mill Creek to test salinity of water, hypothesize about salinity levels at each location, record results, and discuss their findings with classmates. ...
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Mixtures
For this chemistry worksheet, students use the clues given at the bottom of the sheet to complete the crossword puzzle on mixtures. There are 18 clues to solve on the sheet.