Wednesday, September 5, 2012

Wednesday, 5 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:

Valerie and Greg want to bake a cake. They mix the cake batter and preheat the oven. Once the oven reaches the right temperature, they pour the batter in a cake pan, put it in the oven, and close the door. They know that while the cake is in the oven, a chemical change that involves energy occurs. Which of these statements describes the amount of energy in the oven while the cake is baking?

A. The total amount of energy increases because the oven gets very hot.
B. The total amount of energy decreases because it changes into matter.
C. The total amount of energy stays the same, but it changes from one form to another.
D. The total amount of energy will either increase or decrease, depending on how much cake batter there is.

Students continued work from yesterday. Some completed the probe Ice Cubes In A Bag. Others began or continued work on the small group activities of measuring mass, volume, density, and determining a scientific question/hypothesis. Still others read and completed pages 12-14 in their text. Some classes also began an Explorelearning activity (GIZMO) on weight and mass.

There was no home learning assigned.