Register

Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be valid, what must he do?

Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be valid, what must he do?
18.7k views
5 votes
Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be valid, what must he do?

User Rahul Borkar
by
7.7k points

2 Answers

2 votes
Have a control. You have to have something to compare your experimental results or else your results could be random chance.

User Zarick Lau
by
8.2k points
0 votes
test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level
User Kartik Patel
by
8.4k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

Which of the objects is living or nonliving: Bacteria, virus, moss, you, a lemon seed, the air, bread, lettuce and rocks?
Why aren't all minerals gemstones?
What are three important types of forces
Link Copied!