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...
NOAA
Please Pass the Salt
Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to...
Teach Engineering
Properties of Mixtures vs. Solutions: Mix It Up!
Now it becomes crystal clear why the unit is called Mixtures and Solutions. The fifth installment of a six-part unit explores mixtures and solutions. After viewing a demonstration on mixing pebbles with water, salt with water, and...
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
Is It Safe to Go In? Water Quality of Bathing Areas in the EU
Using your senses, apprehend the effects of contaminants in water. With a global focus, young scientists conduct a safe experiment by tasting sugar and salt water with different dilutions. After reviewing threshold limits, learners write...
Center for Learning in Action
Introducing Physical and Chemical Changes
Young scientists investigate chemical and physical changes to the states of matter—gas, liquid, and solid—as well as solutions and suspensions with a variety of demonstrations, grand conversation, and an interactive quiz to check for...
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.
Curated OER
Contaminated Drinking Water
Students explore water and determine whether or not it is safe to drink. In this water exploration lesson, students are split into groups, to acts as the polluter, taster, and recorder. Students explore by placing different amounts of...
Curated OER
Sand and Water
Students follow this recipe for fun clay creations. In this early childhood art and science lesson, students develop creative-thinking skills, fine-motor skills, and sensory awareness while they make, mold, and decorate salt dough.
LABScI
Acids and Bases: Cabbage Juice pH Indicator
Explore the range of pH using an assortment of household liquids. Scholars create their own pH indicators from cabbage and determine the pH of several liquids. To further their exploration, individuals use the same liquids to create...
Curated OER
Salt Marsh in a Pan
Young scholars create a model of a salt marsh to discover the impact of pollution and human activities on water-based habitats including bays and the ocean. They recognize the relationship between natural and developed areas. Students...
Curated OER
Investigating the Effect of Salinity on the Density and Stability of Water
Water with varying amounts of dissolved salt are dyed and then used to compare densities. The objective is to discover the effect of salinity, and therefore density, on ocean water on the stability of the ocean. Many branches of science...
Curated OER
Chapter 14 Review/Acids and Bases
Two pages take chemistry learners on a survey of acids and bases. High schoolers write formulas and name compounds. They identify conjugate bases and acids with the aid of a table (not provided). On the second page, two different acids...
Curated OER
Salt and Water Divorce by a Physical Change
High schoolers discuss the definitions of physical and chemical properties and changes. They vaporize a solution of salt and water, observing the sodium chloride that is left behind.
Curated OER
How to Build a Salt-Dough Volcano
Students 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 volcano....
Curated OER
Weathering and Soil Formation
A set of 27 slides systematically shows how weathering, erosion, and deposition contribute to soil formation. Both chemical and mechanical weathering are described, as are resulting soil layers and properties. There is no longer any need...
Curated OER
Watercolor Landscapes
Van Gogh's Starry Night and Thomas Cole's The Oxbow are featured in a watercolor lesson that encourages young artists to explore various techniques before creating their own landscape.
Creative Chemistry
Finding the % of Fe2+ in Fe(NH4)2(SO4)2.xH2O and the value of x
Step-by-step procedures are outlined in the learning exercise and calculations for junior chemists to perform in their science journals. This laboratory exercise is intended for experienced chemistry learners.
Curated OER
Contaminated Drinking Water
Learners predict, experiment, and draw conclusions about the safety of drinking water. In this ecology lesson, students participate in an experiment to determine if they can taste or see contamination in drinking water. Data is collected...
Curated OER
Amazing Salt
Students 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.
Curated OER
Filtering Water
Students investigate the need for filtered water. For this filtered water lesson, students explore the health hazards posed from consuming unfiltered water. Students construct a water filtration device.
Curated OER
Contaminated Drinking Water
Young scholars see if they can tell if our water is safe to drink by looking at it and tasting it. They perform an experiment using salt and vinegar to see when they can tell water has been contaminated.
Curated OER
Mixing Dissolving Quiz
Answer true or false to get through this 11 question quiz on mixing and dissolving. Budding chemists who know their stuff will have no problem determining which dissolving and mixing questions are correct. A basic quiz on the basic...
Curated OER
Stacking Water
Students experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.