We are doing a science project and our teacher requires us to have a control group. My problem is I don't know what a control group is.
My project is: Does chewing gum increase your mouth's bacteria?
I'm comparing the bacteria growth of chewing gum after meals and not chewing gum after meals. I think my control group would be gum..right?
Also, please help me on how to explain my control group in a detailed format.
Great thanks. All help is appreciated. =)
2006-12-27 09:27:29 · 5 answers · asked by hello 1 in Science & Mathematics ➔ Other - Science
lol how old are you, sheesh im a kid and i know this one. the control is the person who doesnt chew gum. i mean the exiperement is if chewing gum gives you bactria. so if you dont chew gum thats the control duh anyway hope this helps.
2006-12-27 10:01:01 · answer #1 · answered by jack m 2 · 0⤊ 0⤋
Your hypothesis is probably that chewing gum after meals increases bacteria? The only way you can determine if there is an increase in bacteria from chewing is to compare the amount of bacteria when not chewing. So, chewing gum is the experimental treatment - the thing you are doing to examine its effect. Not chewing is the control - the amount of bacteria without the treatment.
You could reverse the question and ask whether bacteria is reduced when people stop chewing gum, and in that case, chewing would be the control, and not chewing would be the treatment.
2006-12-27 09:39:39 · answer #2 · answered by formerly_bob 7 · 1⤊ 0⤋
Your control group in this case is the group which does not chew gum after meals, but this is real a poor control. A control group is supposed to help eliminate variables that are not being tested. There is one enormous variable that is not controlled. Simply, the act of chewing is likely to alter bacterial growth because it stimulates saliva flow. A better experiment might be to test whether chewing sugared (vs sugarless) gum changes the growth of bacteria in the mouth.
2006-12-28 08:48:06 · answer #3 · answered by scienceguy 1 · 0⤊ 0⤋
You've already gotten the answer to this question. The control group is the one that doesn't chew gum
2006-12-27 09:37:23 · answer #4 · answered by arbiter007 6 · 0⤊ 0⤋
The constants (controlled variables) could be a similar pictures however the administration team is distinctive than the controlled variables.. i'm beneficial she is seeking the administration team no longer the controlled variables.. that is distinctive. administration team is what you're evaluating the outcomes too. (For an occasion, you attempt to be sure if particular quantity of water impacts a plant's growth. There are 3 pots, the 1st pot will recieve 10 centiliter of water an afternoon. The 2nd pot will recieve 20 centiliter of water an afternoon, and the third pot will recieve 30 centiliter of water an afternoon. the common quantity of water is 20 centiliter so as that often is the administration team and you will evaluate the pot that recieves 10 cL and 30 cL of water to the pot that obtain the 20 cL (i'm basically making up the quantity yet thats what a administration team IS)) For this undertaking even nonetheless, i can't perceive the administration team.
2016-10-28 12:09:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋