Grade 7 Agenda:
Prepare a neat data table suitable for the Melting Point and Boiling Point Lab
Use a ruler
columns for time, temperature, and observations
room for 30 minutes of observations - (use back of sheet if necessary)
Get out your "Quiz Results Sheet" for chemical and the physical properties quiz.
Record HW in your assignment notebook.
Review of quiz results, All students:
Add notes explaining answers
Boiling Point and Melting Point Lab Prep
Discuss lab behavioral and safety expectations
Assign data table preparation assignment
Chemical and Physical Changes to Matter.
change in form, not composition
change in shape
change of state
vaporization (boiling) - Condensation
sublimation - deposition
melting - freezing
breaks substance down to individual particles
substance is still present - just as individual atoms/molecules
no change in composition