How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask BMW MD Your Own Question
BMW MD, Professor
Category: Homework
Satisfied Customers: 1597
Experience:  Currently teaching, excellent writer
Type Your Homework Question Here...
BMW MD is online now
A new question is answered every 9 seconds

This question involves a middle school science experiment.

Resolved Question:

This question involves a middle school science experiment. I try to not to get involved with these things, but I have a crying kid. Her experiment is "Do antibacterial products remove 99.9% of bacteria?" She ordered an online kit with petri dishes, agar, nutrients, and sterile swabs. The agar came in a bottle. She heated it up and poured it into the petri dishes. She sampled "stuff" from a counter top that had been cleaned with different antibacterial products. She had a control sample from an area that wasn't cleaned. She made a homemade incubator. She placed the petri dishes in a black covered box and put a small heater near the dishes. Both times, the agar cracked and was dry. The first time she tried it, a few of the dishes dried up and some did grow something. She tried it again and they all dried up. It is due on Monday. Any suggestion for this to work if she tries it again. I don't remember anything from microbiology to help her. Is it too late to try this again? Is there a way to do this experiment in a shorter time frame (some other indicator of bacteria/different kind of nutrients, etc)?
Submitted: 5 years ago.
Category: Homework
Expert:  BMW MD replied 5 years ago.

You need to spend $3 to view this post. Add Funds to your account and buy credits.
BMW MD and 5 other Homework Specialists are ready to help you