1. Temperature at which water changes physical phases

2. Bell Ringer Reading in Science p 106-107 What problems arise from using fossil fuels? How can researching new energy sources help solve some of these problems?

3. Classroom Greeters Automatically get up and shake visitor’s hand Introduce yourself and the teacher/class Quietly, “Hi, my name is ________. This is 6 th grade science. Our teacher is Ms. Edmonds.” Hand the visitor the lesson plan and worksheets or directions for the lesson “We always have an agenda on the board that tells us the objective and activities. We begin with a bell ringer, watch videos, read, play games, or take notes during class, and write a DFA about what we learned at the end of class.” Explain what the class is working on Thank the visitor for coming and Go sit back down “Thank you for visiting us.”

4. Standard PS 8 Determine the temperature at which water changes physical phases

5. Temperature and Phase Changes of Water (Review pp. 76-81) Phase ChangeTemperature Name Degrees Celsius Kinetic Energy increase or decrease? (p 79) Molecule movement Solid to Liquid (ice  water) Melting point 0°C IncreaseSpeeding up Liquid to Solid (water  ice) Freezing point 0°C DecreaseSlowing down Liquid to Gas (water  steam) Boiling point or evaporation 100°C IncreaseSpeeding up Gas to Liquid (steam  water) Condensation 100°C DecreaseSlowing down

6. Prepare for Quiz Alone or with the partner beside you Unit 2 Review Pages 120- 121 Questions marked by standards PS. 4, 5 and 8 #2, 6, 8, 10, 14

8. Density (Revisit) What two properties do we need to find density? How do we measure those two properties? Sometimes we’ll have to use another way….

9. Volume Can be found using a graduated cylinder Can also be found by using the formula V= l x w x h

10. Volume Examples

11. Mass and Volume Relationship You need to know mass and volume to find density Compare the density of objects to the density of water If the mass is greater than the volume, the density will be _______ than 1 and the object will ________. If the mass is less than the volume, the density will be _________ than 1 and the object will ________. On the back of your homework….