Tuesday, 4 September, 2012

Students will be able to:

-determine why scientists use a standard measurement system.

-describe density and calculate and compare the densities of various materials using the materials' masses and volumes.

Students completed the following bell ringer:

Amber likes riding her bicycle through her neighborhood where there are lots of hills. She rides down a very steep hill, and then goes up a small hill. She doesn't need to pedal as her bicycle carries her up the small hill. How do Amber's kinetic energy and potential energy change as she goes uphill?

Students completed the following probe: 

Ice Cubes in a Bag
You are having an argument with your friend about what happens to the mass when matter changes from one form to another. To prove your idea, you put three ice cubes in a sealed bag and record the mass of the ice in the bag. You let the ice cubes melt completely. Ten minutes later you record the mass of the water in the bag. Which of the following best describes the result?

A  The mass of the water in the bag will be less than the mass of the ice in the bag.
B  The mass of the water in the bag will be more than the mass of the ice in the bag.
C  The mass of the water in the bag will be the same as the mass of the ice cubes in the bag.

Describe your thinking. Provide an explanation for your answer. 

Students then read from their texts, pages 12-14, checking the information recorded in the book.

Students began hands-on exploration of measuring matter, with various stations around the room. There were stations for: mass, volume, density computation, and determining problem and hypothesis. Those classes that did not complete the rotations will do so on Wednesday.

There was no home learning assigned.