The document discusses counting calories and energy transformation. It explains that calories measure the potential energy in food and how the body transforms energy through digestion and physical activity. When calories consumed exceed calories burned through exercise and daily activities, weight is gained, but a calorie deficit through lower intake or higher output results in weight loss. An example is given of calculating the calories burned by a basketball player during a game based on minutes played and average calories lost per minute of activity. Procedures are outlined for monitoring calories burned by players and determining snack foods needed to replace calories lost during a game.

1. Energy Transformation Lab:
Counting Calories

3. Energy Transformation Lab: Counting Calories
• When you eat, you add energy to your system
by adding material that can release potential
energy via chemical reactions. We often
measure that energy in a unit called a calorie.

4. Counting Calories (continued):
• The calorie values given for different types of food, then,
represent the amount of energy (potential energy) that
these foods can release when they are digested and
metabolized.

5. Counting Calories (continued):

6. Counting Calories (continued):
• Our bodies are constantly transforming energy
stored in various ways within the body, including
the formation of fat cells. When we do physical
work, for example, we can transform mechanical
energy into heat energy (commonly known as
burning calories). Thus when you count
calories, you are counting energy intake. If your
output is less than your intake, then you will gain
weight. However, if your intake is less than your
output, then you will lose weight.

7. Introduction: Energy Transformation Lab
Counting Calories (continued):
• If the average professional basketball player
burns 70 calories for each minute played, then
how many calories will that player lose during an
entire game?

8. Procedures: Energy Transformation Lab
Counting Calories (continued):
• Monitor the average caloric loss of every player
on each team. What information will you need to
complete this task?

9. Procedures: Energy Transformation Lab
Counting Calories (continued):
• If attending the actual game:
– Enter each player’s name into a three column data table.
– Use second column to tally an approximation of each
player’s playing time by observing scoreboard timer.
– Perform calories lost per minute calculations after the
game is over in the third column.

10. Procedures: Energy Transformation Lab
Counting Calories (continued):
• If NOT watching the actual game:
– Enter each player’s name into a three column data table.
– Use second column to enter exactly each player’s playing
time by obtaining complete post game box scores.
– Perform calories lost per minute calculations from the box
score data in third column.

11. Procedures: Energy Transformation Lab
Counting Calories (continued):
• Example of data table (above)
• Please make sure that you allow enough rows for all of the
players.
Player’s name Minutes Played Calories burned
Mister Parr 48 3360
Shaq 38
Kobe

12. Procedures: Energy Transformation Lab
Counting Calories (continued):
• Determine how many servings of each listed snack item each player
will have to consume to replace calories lost during the game.
• Which snack foods provide the most calories with the least amount
of servings? Least amount of bulk?
• Cut and paste screen from Nutrition Converter software to
demonstrate how results may be obtained.

13. Procedures: Energy Transformation Lab
Counting Calories (continued):
• Example of data table (above) needed to display results for
each player.
Name: Mister Parr Calories burned: 3360
Snack Item Calories per
serving
Oz. per serving Servings @
Total Calories
Flaming Hots 190 1 1/8 oz 17.68 @ 3360
Cheetos
Crunchy
180 1 1/8 oz 18.67 @ 3360
Chocolate Milk 160 1 cup 21 @ 3360
Vitner’s Cheese
Kurls
140 1 1/8 oz 24 @ 3360
Reese’s Peanut
Butter Cups
230 2 peanut butter
cups
14.61 @ 3360
Fudge Brownies 280 2 12 @ 3360
Nabisco
Strawberry Fruit
Snacks
90 2.5 oz 37.33 @ 3360