1. Everything in the Universe is either ________________________ Examples of energy: _________________________________________ ________________________________________________________________ Matter is anything that has mass and volume. Examples of matter: _________________________________________

2. Solid – _________________________________ Liquid – ________________________________ Gas – ___________________________________ Plasma – _______________________________

3. 1)Usually most _____________ 2) Molecules ___________ held together 3) Definite ___________ 4) Definite ___________ 5) Molecules are ______________

4. 1)___________ is most dense 2) Molecules ___________ held together 3) Definite ______________ 4) Takes ___________ of its container 5) Molecules are ______________ 6) Has _________________________

5. 1)Usually least ___________ 2) Molecules ___________ held together 3) No definite _____________ 4) Takes ___________ of its container 5) Molecules __________________

6. Solid to liquid = ________________ Solid to gas = __________________ Liquid to gas = _________________ Liquid to solid = ________________ Gas to liquid = __________________ Gas to solid = __________________ Melting and freezing occur at the same temperature (____________ Celsius) Condensation and evaporation occur at the same temperature (_____________ Celsius)

7. Solids, Liquids and Gases Cohesion – the ____________________ by which the molecules of a _______________ tend to remain together Example: water molecules Adhesion – the intermolecular attraction between substances that are unlike and in ______________, causing them to ___ Example: band-aids on your skin

8. Solids, Liquids and Gases Surface Tension – the property of ______ that gives their surface a slightly ______ quality and enables them to form into _________________. –Example: water spiders walking on water Buoyancy – the tendency of a _______ _______ to cause less dense objects to ______ or rise to the surface. –Example: steel boat floating on the river

9. Solids, Liquids and Gases Viscosity – the resistance of a _______ to _____________ –Example: maple syrup is more viscous than water