6th Graders - answer Analysis Questions for activity 5, p. A-35 on a separate piece of paper. Take home vocab quiz - don't miss it!!! 

8th Graders -test tomorrow - study notes for forces and motion unit, study the review sheet.  Just got out of Professional Development meeting, have an appointement in 7 minutes.  No time to add more info.  Check back tonight about 7.
Update in progress......
Questions that you should be able to answer based on lessons in book, activities and notes:
1. When you have zero net force, are forces balanced or unbalanced?

2. When a cart with a pumpkin on it crashes into a desk, what happens to the pumpkin if it is not tied down?  The pumpkin goes _________________ (hint: verb; ends with "-ing"; its what birds do).  Which direction did the pumpkin go?  Why? Now, ask: why do we put seat belts in cars?  What do seat belts prevent?  What would happen to front seat passengers in front end collisions if the passenger wasn't wearing a seat belt?  Why?  Explain using vocab (inertia, unbalanced forces, speed).

3. What is friction? 

4. How does friction help you walk?

5. If you had to slide a heavy piece of furniture across the street, would you rather slide it on asphalt or on ice? Why?  Assume there is no traffic.

6. What is center of mass?  If you had to choose between two cars that were identical, would you rather have one with a low center of mass, or a high center of mass?  Explain: why is one stable and more safe than the other?