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Lesson Title: Nature of Salt
May 11, 2012

Unit: Physical Science - Properties of Matter

Grade Levels: 4-6

Connection To Curriculum: Science

Teacher Prep Time: 10 minutes

Lesson Time Needed: 45 minutes

Complexity Basic

Keywords: matter, properties, ionic, molecular, compounds

Materials:

Periodic table
Chemistry reference book or Web access (optional)
Spheres of styrofoam (some spheres should be about twice the size of others)
Clay
Toothpicks
Straws
 

Description
Students examine the molecular structure of salt and the elements that compose it.

Objectives
Students will:
• Explain the general relationship between an element's periodic table group number and its tendency to gain or lose electron(s).
• Explain the difference between molecular compounds and ionic compounds.
• Use a model to demonstrate sodium chloride's cubic form, which results from its microscopic crystal lattice.
• Describe the nature of the electrostatic attraction of the oppositely charged ions that holds the structure of salt together.


First page of Nature of Salt

Lesson Guide
Nature of Salt Lesson
[104KB PDF file]

 

 

Lesson Activities and Sequence
The Nature of Salt
This lesson reviews the electrolysis of salt water.
Keywords: salt, matter, properties, ionic, molecular, compounds

National Standards:

National Science Education Standards, NSTA
Science as Inquiry
• Understanding of scientific concepts.
• Skills necessary to become independent inquirers about the natural world.

Physical Science
• Properties of objects and materials.
 


 

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