2006-09-11 13:44:14 · 9 answers · asked by caryn_depasquale 1 in Science & Mathematics ➔ Other - Science
Reproducing the same results in any next experiment.
2006-09-11 13:45:25 · answer #1 · answered by · 5 · 0⤊ 0⤋
There are several reasons that a controlled setup is important. As a Psychologist, I know this well!
-You want to control for extraneous variables. These are variables you might not have thought of that could interfere with your results.
-You want to be able to reproduce the results every time you run the experiment. Reliability & validity play into this.
There are several other factors, but if you're in 7th grade you probably don't have to worry about them yet!
www.paranormal-society.com
2006-09-11 14:55:47 · answer #2 · answered by jlo5616 3 · 0⤊ 0⤋
She ought to get a spinning ultimate, divide the ultimate into 3 equivalent areas. colour a million section purple, a million blue, and a million eco-friendly. Now the exciting bit spin the ultimate very quickly and all 3 colorations merge starting to be white. yet another thought is to make a lemon battery. Take a lemon and a couple of diverse metals, copper and zinc paintings ok. Stick the metals into the lemon making particular that the metals do not touch. with paper clips connect wires to the two metals and a small flashlight bulb to the wires and hay presto enable there be mild. Or make a volcano with scrunched up paper positioned some bicarbonate of soda in it and on the ultimate time merely upload a splash vinegar and watch Vesuvius erupt.
2016-10-14 21:49:44 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Having a controlled experiment lets you know if what you are seeing is just a part of what normally happens, or if it is a significant finding. For example: if you are studying the effect of milk on a plant, you would need to grow a plant with milk instead of water, but you would have a control where you planted a seed (the same kind) in a pot of the same kind of soil and exposed it to exactly the same light and temperature. That way, you can compare the "normal growth" with the growth that occors in milk. Without this control you would never know if what happens to the seed is just what normally happens to the seed.
2006-09-11 13:48:25 · answer #4 · answered by Loulabelle 4 · 0⤊ 0⤋
The control is a group that is identical (or as close as possible) to the test group, but does not receive the test intervention. Imagine and experiment where you want to demonstrate that a potential antibiotic kills bacteria. You make tubes with bacteria, dissolve the antibiotic in water to the desired concentration, and add it to the tubes. If the bacteria are dead, the antibiotic works, right? No. What if there was something in the water that killed them? Your control group would be bacteria exposed to the water without the antibiotic. If the bacteria die without the antibiotic, nothing is proven.
2006-09-11 13:59:43 · answer #5 · answered by novangelis 7 · 0⤊ 0⤋
A controlled setup allows you to fully comprehend the experiment.
2006-09-11 13:47:11 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It is the only way to have an accurate outcome to the proposed hypothesis. Other wise you could just make up your own answers and it would be the same principle.
2006-09-11 13:50:23 · answer #7 · answered by Jackie G 3 · 0⤊ 0⤋
In the experiment, this is what the variable is compared to.
2006-09-11 13:47:11 · answer #8 · answered by Mitchell B 4 · 0⤊ 0⤋
so you have something to compare your experiment to
2006-09-11 13:49:22 · answer #9 · answered by Jimmy C 5 · 1⤊ 0⤋