1. What conditions are necessary for the gases to come together and form stars? Today’s Date

2. Collision Game  The number that you roll with your die is the number of spaces you move straight up the column on the grid.  Then roll again. This time move the appropriate number of spaces straight to the left.  With each roll, alternate moving up the grid and then to the left.  Keep track of the number of times your dime either crosses or lands on an H.  Continue until your playing piece moves off the grid. This signals the end of the trial.  The number that you roll with your die is the number of spaces you move straight up the column on the grid.  Then roll again. This time move the appropriate number of spaces straight to the left.  With each roll, alternate moving up the grid and then to the left.  Keep track of the number of times your dime either crosses or lands on an H.  Continue until your playing piece moves off the grid. This signals the end of the trial.

3. Metaphor.  Your dime represents a hydrogen atom zipping through a collapsing, spinning cloud of gas. The squares with an H represent hydrogen atoms in the cloud.  As you play the game, use a pencil to mark the path your dime takes on the playing board given your rolls of the die.  Your dime represents a hydrogen atom zipping through a collapsing, spinning cloud of gas. The squares with an H represent hydrogen atoms in the cloud.  As you play the game, use a pencil to mark the path your dime takes on the playing board given your rolls of the die.

4.  As you play the game, remember that you are exploring what happens as atoms, ions, and molecules move through clouds of stellar dust and gas. Your dime will be colliding with other hydrogen atoms.  Think about what this represents in the formation of a star.  As you play the game, remember that you are exploring what happens as atoms, ions, and molecules move through clouds of stellar dust and gas. Your dime will be colliding with other hydrogen atoms.  Think about what this represents in the formation of a star.

5.  Tally how many times your playing piece either crosses or lands on an H during the course of a game. Those encounters represent atomic collisions.  Record the number of collisions for trial 1.  Repeat the game 5 more times for trials 2-6. –Record on your wiki the number of collisions for each trial. –Calculate the average number of collisions for the 7-H grid and record this average on the handout.  Tally how many times your playing piece either crosses or lands on an H during the course of a game. Those encounters represent atomic collisions.  Record the number of collisions for trial 1.  Repeat the game 5 more times for trials 2-6. –Record on your wiki the number of collisions for each trial. –Calculate the average number of collisions for the 7-H grid and record this average on the handout.

6. Complete # 8-9, p 526  Insert a table  Answer #12, p 526  As a class, and then on your own, answers R & C # 1-4  Insert a table  Answer #12, p 526  As a class, and then on your own, answers R & C # 1-4