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?
asked 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?

asked
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.

answered
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
answered
User Kartik Patel
by
8.4k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

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!