Properties of Salt

Fifth graders study the properties of metals and use them to identify different properties.  In this metal properties lesson students complete a demonstration .

Crystallize the answer to the question that has been investigated since the first of four lessons: What is the unknown crystal? Pupils have examined, crushed, and dissolved four samples plus an unknown as an exploration of the properties...

Students discuss certain properties of salt and how it is used every day as well as harmful uses. They experiment with salt to see it conduct electricity, form crystals and water freezing temperature. They complete a worksheet to record...

Who knew that learning about the states of matter could taste so sweet? This fun hands-on instructional activity captures the attention of students as they use what they know about solids, liquids, and gases to create their very own...

Crystals are more than meets the eye! Can learners tell them apart simply by observation? As they examine five samples with a magnifier, they find that appearance alone is not enough. This serves as an introduction to a mini unit on...

Middle schoolers explore the history of the Caddo Salt Industry found in Arkansas. Along with learning about how salt deposits formed in Arkansas, learners study the process of salt production and how valuable salt is as a natural...

Once investigators have learned how their mystery liquids interact with water during the preceding activity, they now use their observations to identify them. This is an ideal conclusion to the mini unit on the properties of water. 

Blue-tinted water is added to unknown liquids that have been tinted yellow to find out how they interact. This is a memorable activity that is part of an investigation on the properties of liquids, which is part of a unit on the...

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.

Why do we salt roads when they have ice on them? Middle school physical scientists experiment to find out that salt lowers the freezing point of water. This classic lab experiment has a practical application and is also designed to meet...