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1. Vocabulary

solids
liquids
gas
freezing point
boiling point
dissolve
solution
matter
characteristics
properties

INTRODUCTION:

Matter comes in three states that are distinguished by the strength of the bonds holding the molecules of the matter together. The three states of matter are:

• Solids: The strong bonds between molecules make solids rigid and very difficult to deform.
• Liquids: The relatively weak bonds between molecules allow liquids to be deformed without effort. Liquids have a fixed volume, but their shape is determined by the shape of the container holding them.
• Gases: Virtually no bonds exist between gas molecule so that gases can spread into any available space. The volume of a gas is determined by the size of the container holding it.

1. http://www.chem4kids.com/files/matter_states.html

2. Readings

• ScienceSaurus byGreat Source pp. 242-267
• What is the World Made Of by Kathleen Weidner Zoehfeld
• Solids, and Liquids by Delta Educatio

1. Experiments

http://curriculalessons.suite101.com/article.cfm/sugar_crystal_science_lesson

1. Presentations

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