Week 7 CMT Style Problem - 4th Grade


A Bulb's Life



A bulb rated to last 1,000 hours should last about 1,000 hours. But how long is that?

When would you expect to replace it if you installed such a bulb today in one of the following:

  • your classroom?

  • your bedroom?

  • your family room or living room?

  • your basement or garage?

  • a street lamp?



It may help to use a calendar.