Gather Your Materials: You need a notebook and a pencil.
Begin Your Energy Survey
Walk throughout your house and conduct the following survey below. Use your pencil and
notebook to track the results of your survey.
Number of regular light bulbs
Number of CFL or energy efficient light bulbs
Survey Results
Count the regular light bulbs in
your house.
How many did you find?
Count the CFL or energy efficient
light bulbs in your house.
How many did you find?
Calculate Your Light Bulb Costs
Use your survey information to calculate how much it costs to light your house.
It costs $4.80 per year to use a regular light
bulb. How much does your family spend to
use regular light bulbs at your house. Multiply
the number of regular light bulbs by $4.80.
$4.80 x ________ light bulbs = $ __________
It costs $1.20 per year for each energy
efficient bulb. How much does your family
spend to use energy efficient light bulbs?
$1.20 x ______light bulbs = $ __________
What is the total cost to light your house? Hint: Add your calculations together.
$ __________
A bright idea . . .
What would your total energy costs be if EVERY light bulb in
your house was energy efficient?
$ __________