2. What’s the matter with matter? By Elaine Williams

3. What is an atom? An atom is the smallest particle of matter Everything is made of atoms Atoms combine together to form molecules

4. What is a solid? A solid keeps its shape A solid keeps its shape The atoms in a solid are in a close pattern The atoms in a solid are in a close pattern The atoms do not move around The atoms do not move around A solid is hard A solid is hard Solids can not be compressed (squashed) because the atoms are very close to each other Solids can not be compressed (squashed) because the atoms are very close to each other

5. What is a liquid? A liquid takes the shape of its container, they do not have their own shape A liquid takes the shape of its container, they do not have their own shape The atoms have more space between them The atoms have more space between them Liquids can flow because the atoms can move past each other Liquids can flow because the atoms can move past each other Liquids can not be compressed (squashed) because the atoms are still close together but not necessarily touching Liquids can not be compressed (squashed) because the atoms are still close together but not necessarily touching

6. What is a gas? Gas atoms expand to fill their container The atoms are very spread out and always moving around and changing patterns Gas atoms are stopped by the walls of their container Gases can be compressed (squashed) because the atoms are so far apart they can be squeezed together

7. Fun Facts: What is solid, liquid, and gas? Water is solid when its ICE Water is liquid at room temperature Water is gas when it boils and evaporates

8. Comprehension Questions 1. What is an atom? 2. How are atoms arranged in a solid? 3. How are atoms arranged in a liquid? 4. How are atoms arranged in a gas?

9. Works Cited California Department of Education Content Standards California Department of Education Content Standards http://www.cde.ca.gov/re/pn/fd/documents/sci-stnd.pdf Phschool www.phschool.com/.../ solids_liquids_gases.html www.phschool.com/.../ solids_liquids_gases.html picture of solid matter molecules cofc.edu cofc.edu www.cofc.edu/~martine/ 111LectWeek1.htm picture of solid, liquid, gas molecule structure ABPI Resources for schools ABPI Resources for schools http://www.abpischools.org.uk/resources/solids-liquids-gases/index.asp Properties of solids, liquids, and gases Science for All Science for All http://www.apqj64.dsl.pipex.com/sfa/slg_structure.htm Molecular properties of solids, liquids, and gases Best Prices.com Best Prices.com www.bestprices.com/ cgi-bin/vlink/bookauthors/... Picture of glass of ice water Find Sounds Find Sounds http://www.findsounds.com/ISAPI/search.dll Boiling water, stream,